๐ Boringly simple parsing and validation for IBANs, BICs, ISO3166 alpha-2s, German Health Insurance Numbers, German Tax IDs, German Pension Insurance Numbers, and German Postal Codes.
Your own country codes take 55kb space. I think it would make more sense to use a dependency(github.com/biter777/countries) which is re-usable by other code as well whilst your own is not(really).
Describe the bug
Valid IBANs from Finland and Estonia are considered invalid due to national checksum validation.
Here are two random valid IBANs "EE321282973364859699", "FI9775844768617584".
Expected behavior
Valid IBANs are considered valid.
Error Messages
If applicable provide error messages and stack traces.