Disgusting service

I am currently in the UK from South Africa, before leaving I made arrangements with standard bank. Upon arriving here there was a mistake made and the otp was not changed to email. Because of this my atm pin got blocked along with my account. I have sent numerous emails as well as made many expensive phone calls to get this sorted out. They told me that the atm pin got unblocked but when trying to change my otp pin to my email address it constantly tells me an error has occurred. Once again many emails and calls to now be ignored as no one is bothered to help or I don't think anyone knows how to fix it. I am now being ignored and 7 months later I still sit with the same problem and no access to any of my funds. I have banked with standard bank for many years and I think that the quality of standard is disgusting. Being ignored Will not make me disappear as you still have my money!