Unfair treatment

I believe is time to leave this bank that everyone is saying is foreign national friendly is the worst bank last night tried to purchase a flight ticket as am to travel today out of the country but was not able to pay for the ticket with my card even as a private client and when I called I was told Fnb normally block certain clients from using third parties online transactions meaning we are being treated as suspect how cani I be using this bank for 8 years and the have never trace any suspicious transactions on my account but an still being treated as long please this is a alert to any foreign national using Fnb that you are looked upon as suspected if this is not resolved and removed with immediate effect they should count it as out for good