Empty promises and most pathetic bank

I have complained about Discovery bank about five weeks ago regarding the inabiity to close my card - which was never used but cost me R600. They contacted me and saidit has been resolved and I will get a refund in 5 to 10 days.This never happened and once again i received an invoice for R100. How pathetic is this. If they cannot get one simple thing right how can one trust them with anything else. I hope people see ths and think twice about getting a card from this bank!!! I was given a reference number ***3 and was assured by the agent Lerato, that all will be sorted. Pathetic