Waiting a month for a refund without any feedback

<p>I returned an item to the store at the Grove on 9 April. the cashier didn't have cash to refund me for it so she logged a refund on my bank card. Said I should check that the money comes in after a few days - if not then I should go back in to see her. I never received my money. I've since been into the shop 3 times and we've emailed the Clicks Group banking queries address several times sending proof of the return and even my bank statement to prove that I received the money. Have I heard anything back? No! It's been a MONTH and I'm STILL folowing up on this. I want my money bac****! And some customer service/feedback would be great - is it really that difficult to help your customers when they need it???</p>