Is it permissible to pay the banking service fee, which a usurious bank deducts from the balance if it falls below a certain value, from usurious interest, and distribute the remainder to charitable causes?

It is not permissible to keep money in a usurious bank except out of extreme necessity, and in a current account if possible. It is not permissible to take usurious interest to pay for service charges; rather, it must be spent on the general welfare of Muslims.