CAN'T REFUND GOODS BEFORE 11:00???

I tried to return a pair of sneakers for refund on Saturday 7 March (I bought them about a week ago and still have the receipt). I work a very busy week and have very limited time to go to the shops. I got there at 10:30 (they opened at 08:00) and asked for a refund. The staff then said that they are not able to do a refund on debit/cash as they don't have money in the till (they cannot refund back into debit card, they have to give cash). I was then told to come back at 11:00 because they should then have enough money in the till to do a refund. I spoke to a lady (Millicent) on the phone, apparently the area manager who told me that there is nothing she could do, I just have to come back later. I went back after 11:00 and asked Vera (the acting manager for the weekend) for the refund. I was greeted with raised eyebrows and a smirk and told that they still don't have money for a refund and I would have to go back at around 15:00!!! I tried calling Millicent again on her cellphone, but she wouldn't answer her phone again.<br> Needless to say, I still haven't got the refund on the sneakers and they're still in my car!!!!<br> HOW THE HELL DO I GET A REFUND FROM THIS SHOP?