No Refund received

I purchased a sissy boy bikini bottom through spree. On the 13th of December I logged a return and refund on the app. The item was not collected until the 10th of January!! I sent countless mails and received no response. I then received an email stating that my exchange is on its way! Exchange when i clearly stated refund! I then called and the lady said she had sorted it out on the system and my refund will be done! Still to date NO REFUND! I then complained AGAIN and have received no response whatsoever. I have used every communication channel available to get through to spree but no one can sort this out. I expect my refund to be done asap. This is absolutely shocking service. I clearly explained it must be a refund countless times and spree is just ignoring all my requests. I will not be shopping at spree again and I want my refund!!