I want my refund

I contacted online support as I needed to order 25 sets of cutlery, they told me I had to order 5 sets at a time per order as that's the only way. I proceeded to order 5 sets and paid and then another 5 sets and paid. Upon trying to order the 3rd time it said no more stock. I immediately called them back and told them that their advise had failed and now they should cancel the two orders and refund me. This was all done on 06 March 2023. To this day 20 March (2 weeks later) I have called the call centre several times and sent emails almost daily with absolutely no reposnse or assistance. They have still not refunded my account and I haven't received anything. The most shocking customer support ever. I want my money back. Order no. *** and ***.