Capitec NOT HELPFUL

Went to piccadilly to buy a few items, i wanted to pay using my card, their speedpoint declined 3 times & on the 3rd attempt it said insufficient funds. I ended up using the cash I had on me. Piccadilly did not give me the declined receipts. I got home & checked my app & saw Piccadilly took R537 from my account. I called Capitec & explained the situation, told them I only have the cash receipt showing the same amount of R537, they kept telling me I need receipts showing it declined so they can reverse the funds into my account. I honestly don't know why I still bank with Capitec