Unfair practice to Townships customers

Bought a Vivo Y16Gold at Foschini store in Maponya Mall in Soweto. The phone was bought on the 08/12/2022 on the 10/12/2022 went to the store to ask that they refund my money because my son has bought me a new phone as a gift. I would not be able to utilize two phones and taking into account that I have lost interest in the Vivo handset but to my surprise the store refused to refund me my money hence I explained to them that the return was within three working days but they insisted that they won't refund me my money they should send the phone to the supplier being Vodacom. I am asking if Foschini Retail Group has different policies because in the Townships they are refusing to accept returns or refund but in malls around suburbs like Sandton, Mall of the South, Clearwater and East Gate Malls they gladly offer us refund. I spoke to the Manager of the store by the name of Mrs Athabile David's her contact number *** who refused and insisted on sending the handset to Vodacom. I have seen this as a bad service and bad perception that the store is treating Townships customers with disrespectful attitude