Ukip has been forced to cancel its Freepost address after opponents of the party sent a series of unpleasant packages - including blood and faeces.

The Freepost service had already been besieged by people sending heavy items, such as bricks, at the expense of the anti-Euro party. Other people sent flyers, leaflets and unwanted household items after the so-called “Freepost” address was circulated on the internet.

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The address being used is not registered as Freepost on the party's website but was used on a leaflet for a campaign in Norwich in 2010.

Twitter has been inundated with images of people sending various packages in an attempt to rack up a huge postal bill for Ukip.

But there was only so much Nigel Farage’s party could stand.

And on Saturday the Ukip Bexley Twitter account confirmed that the Freepost address had been cancelled, following a spate of particularly unsavoury deliveries:

On Sunday Ukip was forecast to win the most British votes in European parliamentary elections on 22 May, despite a poll showing the party is seen as racist by 27 per cent of voters.

A poll of voting intentions at the European elections in The Sunday Times put Ukip on 29 per cent, one point ahead of Labour, while a second survey in The Sun on Sunday gave Ukip a 3 point lead over Labour.

Shape Created with Sketch. Ukip gaffes and controversies Show all 18 left Created with Sketch. right Created with Sketch. Shape Created with Sketch. Ukip gaffes and controversies 1/18 European elections poster Party's latest EU election posters branded 'racist' and compared to BNP campaigns Rex 2/18 Farage 'car-crash' interview Ukip spin doctor forced to intervene as Farage falters in disastrous radio interview 3/18 Neil Hamilton Picture Exclusive: The year is 1998. The venue is a Springbok Club meeting. The flag is a symbol for white supremacists in South Africa. And the speaker is Ukip’s deputy chairman, Neil Hamilton 4/18 Kerry Smith Kerry Smith resigned as would-be MP for South Basildon and East Thurrock after it emerged he had mocked gay party members as “disgusting poofters”, joked about shooting people from Chigwell in a “peasant hunt” and referred to someone with a Chinese name as a “Chinky bird” PA 5/18 Natasha Bolter Former Ukip member Natasha Bolter was suspected of not having the teaching qualifications she professed to, only days after it was revealed that claims of her having attended Oxford University were also false PA 6/18 Ukip Calypso song Mike Reid released a single in praise of UKIP trying to control the UK's borders, only to withdraw the single after being accused of racism for singing in a Jamaican accent 7/18 Janice Atkinson Janice Atkinson, Ukip's South East chair, pictured by protesters while campaigning in Ashford, Kent with local party chair Norman Taylor Facebook/Maria Pizzey 8/18 Ukip cancels Freephone Ukip cancels Freephone number after protesters repeatedly called to push up costs Getty Images 9/18 Farage 'car-crash' interview Mr Farage appeared to be caught out on a number of issues, from Romanian neighbours to people speaking foreign languages on the train 10/18 Ukip employs illegal immigrants Ukip criticised after European election candidate found employing illegal immigrants AP 11/18 Magnus Nielsen Ukip candidate: 'Take away the right to vote to improve election turnout' Getty Images 12/18 Poster model A “British builder” portrayed in a Ukip poster accusing EU workers of taking UK jobs turns out to be an Irish actor - aka a migrant worker 13/18 'Arrest protesters' Ukip called for police to arrest protesters ‘who call us fascists’ ahead of showdown with anti-fascist groups in Brighton 14/18 London Live make-up Ukip's Nigel Farage reportedly refused to go on London Live 'without professional make up-artist' Reuters 15/18 Andre Lampitt Ukip forced to suspend the "poster boy" of its European election broadcast, after it was revealed he had posted a series of vile racist comments on Twitter 16/18 Expenses Nigel Farage says he is taking taking legal advice over “outrageous” allegations that he is responsible for more than £50,000 of “missing” EU funding that was paid directly into his personal bank account 17/18 Have I Got News For You Nigel Farage appears in Have I Got News For You, spends the entire episode being ridiculed over expenses and party 'fruitcakes' BBC 18/18 Anti-gay comments Local branch chairman for Ukip defends a party's councillor candidate Douglas Denny who called gay people “abnormal” and said he wished “they stop trying to ram it down my throat”, all while discussing whether the word “sodomite” should be used 1/18 European elections poster Party's latest EU election posters branded 'racist' and compared to BNP campaigns Rex 2/18 Farage 'car-crash' interview Ukip spin doctor forced to intervene as Farage falters in disastrous radio interview 3/18 Neil Hamilton Picture Exclusive: The year is 1998. The venue is a Springbok Club meeting. The flag is a symbol for white supremacists in South Africa. And the speaker is Ukip’s deputy chairman, Neil Hamilton 4/18 Kerry Smith Kerry Smith resigned as would-be MP for South Basildon and East Thurrock after it emerged he had mocked gay party members as “disgusting poofters”, joked about shooting people from Chigwell in a “peasant hunt” and referred to someone with a Chinese name as a “Chinky bird” PA 5/18 Natasha Bolter Former Ukip member Natasha Bolter was suspected of not having the teaching qualifications she professed to, only days after it was revealed that claims of her having attended Oxford University were also false PA 6/18 Ukip Calypso song Mike Reid released a single in praise of UKIP trying to control the UK's borders, only to withdraw the single after being accused of racism for singing in a Jamaican accent 7/18 Janice Atkinson Janice Atkinson, Ukip's South East chair, pictured by protesters while campaigning in Ashford, Kent with local party chair Norman Taylor Facebook/Maria Pizzey 8/18 Ukip cancels Freephone Ukip cancels Freephone number after protesters repeatedly called to push up costs Getty Images 9/18 Farage 'car-crash' interview Mr Farage appeared to be caught out on a number of issues, from Romanian neighbours to people speaking foreign languages on the train 10/18 Ukip employs illegal immigrants Ukip criticised after European election candidate found employing illegal immigrants AP 11/18 Magnus Nielsen Ukip candidate: 'Take away the right to vote to improve election turnout' Getty Images 12/18 Poster model A “British builder” portrayed in a Ukip poster accusing EU workers of taking UK jobs turns out to be an Irish actor - aka a migrant worker 13/18 'Arrest protesters' Ukip called for police to arrest protesters ‘who call us fascists’ ahead of showdown with anti-fascist groups in Brighton 14/18 London Live make-up Ukip's Nigel Farage reportedly refused to go on London Live 'without professional make up-artist' Reuters 15/18 Andre Lampitt Ukip forced to suspend the "poster boy" of its European election broadcast, after it was revealed he had posted a series of vile racist comments on Twitter 16/18 Expenses Nigel Farage says he is taking taking legal advice over “outrageous” allegations that he is responsible for more than £50,000 of “missing” EU funding that was paid directly into his personal bank account 17/18 Have I Got News For You Nigel Farage appears in Have I Got News For You, spends the entire episode being ridiculed over expenses and party 'fruitcakes' BBC 18/18 Anti-gay comments Local branch chairman for Ukip defends a party's councillor candidate Douglas Denny who called gay people “abnormal” and said he wished “they stop trying to ram it down my throat”, all while discussing whether the word “sodomite” should be used

Both polls showed Prime Minister David Cameron's Conservatives in third place, with 22 and 23 per cent of the vote respectively.

Nigel Farage says he hopes success in the European elections will help the party win seats at a national election in 2015.

Additional reporting by agencies