Mr Shopper not refunding

Hi to all and Mr Shopper. I have read good things and bad things about Mr Shopper. It seems that I am one of the unlucky ones that has a really bad experience with Mr Shopper. I placed an order for a smart phone on 28 Nov 2020 and paid for it. The delivery date was to be 8-12 Dec 2020, but Mr Shopper gave notice that orders will be late. Contacting Mr Shopper is a REAL challenge. They never answered one phone call. Online messages are answered infrequently. E-mails to support are also not always rep**** to. So I contacted them several times and was given a new date of 16 Jan 2021. After struggling a lot with Mr Shopper I requested a refund. This excerpt is directly from the invoice I got from Mr Shopper: "NB: Orders sometimes take longer than expected day of delivery, we can always refund our customers whenever they wish to cancel." They contacted me and gave me a new delivery date for 5 Feb 2021. After that I requested a refund again with bank details and all and just silence. So here I am frustrated that they have my money and are ignoring me now and will not refund me. I will contact the ombudsman soon if Mr Shopper still ignores me and do not refund me. Please give me back my money Mr Shopper. It is the right thing to do after +3 months of empty promises.