Is it permissible to deal with an usurious bank to obtain a bank guarantee required for a license to work in religious tourism (Umrah and Hajj), if it is impossible to obtain it from an Islamic bank due to its difficult conditions (mortgaging real estate)?

A bank guarantee fully covered by a balance in the bank is permissible because it is considered an authorization for the bank to carry out procedures, and it is permissible for the bank to take a fee for it. There is no objection to obtaining it from a usurious bank if an Islamic bank is not available. As for a guarantee that is not fully or partially covered, it is not permissible to take compensation for it because it is considered a loan, and it is not permissible to obtain it for a fee from the bank.