International short code help!

Since switching to T-mobile I've stopped receiveing Two-factor authentication codes from my European bank, which means I can't log into my bank account anymore! I've talked to bank and T-mobile, turned off any blocking, cleaned caches and messages to no avail. The bank says the messages are going out and there's nothing they can do, T-mob says short codes are country specific and I should be lucky I've received them so far smh. Is there really nothing that can be done? Gracias