Empty promises. No return calls regarding Credit Card query

I have had an issue with my new credit card because of a ***** Lock. This has caused numerous transactions to fail, but also at the same time a lot have gone through successfully. Yesterday I spent a lot of the day making phone calls to Discovery to resolve this. It started of well where the first consultant called me back after investigation. Then she promised to call me back at 12 and no call came. I phoned back and the 2nd person promised to get it sorted and I would hear from her or the original consultant. At 5pm no call came so I called again. I was the transferred to the ***** department and again promised I would be called. A day later and still no call or communication. Please go back and listen to your 3 consultants empty promises. Such a disappointing experience. I guess Discovery doesn’t care enough about my business. I will be forced to use an alternate bank to allow my transactions to go through. Incredibly frustrated and disappointed at this poor service. An indication that I should definitely not consider moving completely over to discovery bank