I would like to add a new bank account but none of the Nigerian banks is listed?
The banks listed in the dropdown are those for which we have automatic bank feeds available. Automatic bank feeds allow automated import of all your bank transactions. Unfortunately, this feature hasn't been activated for Nigerian banks yet but we're actively working it. You can expect banks to be added in the coming months.
In the meanwhile, you can still go ahead by selecting 'Other' as the bank. You'll still be able to record payments, be it in a more manual way.