Poor service - false turnaround times

I called Discovery Bank on 20/1/2022 to report a problem with my credit card which isn’t working for purchases on Amazon. The consultant told me he’d escalate the problem as it may be an internal issue and said I’d receive a response within two hours. After 24 hours, still NO RESPONSE. I called again on 21/1/2022 and that consultant also played the “escalation card” but she couldn’t even give an estimated time or date of expected response. She also couldn’t explain properly how her alternative options worked. It’s now 22/1/2022 (48 hours later) and still NO RESPONSE. Very poor service indeed! If Discovery is not equipped to offer banking services they should rather stick to their areas of expertise.