I want my refund

TFG keeps disappointing me. I had an issue with my account statement being sent to my mothers number which was resolved and now I made a return of 3 skirts( Different sizes) and it’s been 4 weeks of the return and I haven’t received any credit for my return. I called this week on Monday to ask about the refund and the lady I spoke to said she will escalate to the warehouse to check the return and I asked her to send me an email confirmation of what we spoke about and until this very day no email. I want my refund because the items were collected so now I need my return and no one has called me back since with the update