worst service ever!

I opened an Edgars account in January and made one purchase. I went back the next time and was told the card was blocked. Since then until today, nobody is willing to assist me. I went to the Canal Walk branch and sat there since 3pm until 17:30. A lady called Pumza tried to assist but she seemed clueless. She called the call centre and a lady called Portia said she could not assist with getting the card unblocked. So what now? You will still want your money at the end of the month yet your service is poor!!?? I'm really frustrated and disappointed