Internet Banking not working at all

Dear Standard Bank<br> My internet banking is been faulty since my account has been updated. I could not use one of my cards in internet banking before but now my entire account is inaccessible. All it does is send a one time password to my old phone number the whole time. Because of this I cannot even access my account anymore. Fix this problem I am so done with everything that has happened. I just want my bank account to work. What is the point of having to pay for a monthly service when it doesn't even work. At the end of the month you will continue deducting the amounts from my account like nothing has happened.