Worst bank

It's been over 6 months now awaiting for feedback regarding changing of my cellphone number and four months without a bank card. My card expired in April and my current cellphone number om their system doesn't allow me to change it. It logs a query which was NEVER EVER followed up for 7 months now. I tried reaching out to them on social media since they go no branches by my efforts bared not fruits. It's extremely disappointing the level of service am subjected to in this bank and no one takes ownership for customers dissatisfaction as they got mechanism to trace such incidents. For a fast growing, it's beyond shocking that I takes so long to attend to such minor issues, which raises and questions of what would happen if I lose money this bank. They would probably take 7 years investigating as they currently on 7 months investigating query. I don't advise anyone to join this bank