Expensive products, cheap service

I purchased a grey tight online and received it on the 27th of June 2022. I returned the item on the 28th of June. I have been waiting for a refund since then. I made several follow ups on the payment and very time I was told that a request was sent to the finance department. This morning I had a terrible experience with Nicky. As usual I phoned making a follow up on the payment, she informed me that she realized on the Under Armour system that I made a follow up on the 5th of July. She further informed me that she will do a follow up with the finance department and phone me back within 15 minutes. I have been waiting, no phone call. The products are expensive, yet the service is very cheap. They have adopted "don't care attitude"