  A self-consistent exact solution for a Reissner-Nordstr\"om black-and-white
hole formed as a result of accretion has been considered. Prior to the
formation of a black-and-white hole, there is a bulk charged sphere at the
center of the system. The occurrence of a turning (bounce) point in the newly
formed black-and-white hole is investigated. The occurrence of a turning point
was investigated by an example of solution for the accretion of a neutral
spherical dust shell. The model equations are written with allowance for the
cosmological $\Lambda$-term. Within the model under consideration, both the
black-and-white hole and its turning point are formed in the already existing
Universe; therefore, the black-and-white hole in this model is not <<eternal>>.
