Bad service? No service? Take your pick

I have a Discovery bank credit card which I am trying to close. These cards were administrated by FNB, but has now changed to Discovery bank. Discovery bank called me to inform me of this fact. Whilst on this call, I told them that I actually want to close the account. My call was redirected, I held on for 10 minutes, gave up, and hung up. I left numerous ''call me back'' messages on their website, but of course, to no avail. After calling again, I actually managed to speak to someone.................... I was told I would be called in 5 working days' time by one of the officials and they will close the account for me. The five days have passed, no calls were received, and I am still stuck with a card costing me unnecessary money. I called again (twice), held on for 18 and then 9 minutes. Now I wasted a lot of airtime as well by holding on for so long without any results. Unfortunately I am still old school, and expect service from companies. But I suppose that is too much to ask of Discovery bank. They obviously do not share the same sentiments as me. Please people, if it is good service you are after................... stay away from Discovery Bank.