Pathetic service and they do not refund peoples money!!!

I purchased a tablet online on the incredible connection website on 28 December 2020 and received it on the 01 December 2020. The tablet was not a good product, very slow even though it was brand new, overheating when 1 program was running, just terrible all round. I returned it on 07 December 2020 to Incredible Connection Pavillion. The person that received it (D Maistry) said there is a 15% handling charge(which is ridiculous but anyway we said thats fine) and asked for a refund. They tell us that it would take 7-14 days to process the refund. Fine. On day 13 after return date, I called the store and they said that we need to wait 14 days so I said fine. We have still not received the refund and cannot get a hold of the store because there seems to be an issue with their phone line. I messaged them on Facebook and they asked me for the details so the can "help" Useless! They tell me that I have to wait 10-30 days for a refund so I said that 30 days have already passed! WTH! They respond and say I should contact the store to follow up ?! I explained at the beginning of the conversation that I cannot get a hold of the store and tell them this again! So now they just ignore me. The call center cannot help either This is absolutely disgusting service. I will never buy from this store again and will warn others against it as well. I rather pay more and buy products from a more reliable business. They haven't even asked for my banking details to do a refund !