Standard bank's bad practices

Standard bank has made an arrangement with me early 2019 if I have the year correct to pay an amount of 1500 for 6 month's and my card would be reinstated again which I did and kept to my end of our arrangement. This year 2020 I got my monthly statement via email as uaual and it states clearly that I have nearly 14000 that's available so I tried using my card but to no avail..

I contacted Blue bean and asked what's going on , I was told bia email that my account has been closed , I tried speaking with them again and they stated that they never made the arrangement with me that was done via telephone. I then told them but all their phone calls are recorded so they must then go back and will find it but to no avail..

I think this is really pathetic business practice and during my time that I held this card I must have paid it up in full 3 times..