Vodacom not assisting the customers.

My Mother bought a Samsung Note 10 ultra throught vodacom online since their is no vodacom shop in our town 3/4 months back. The phone screen started flickering repeatedly, none stop and then went white. Cannot shut the phone down or anything. We phoned vodacom and after we spoke to 7 different people including an supervisor they reffuse to accomodate us to repair phone or to replace. They keep on telling me we need to take it to a vodacom shop, but like I explained to them their is no vodacom shop but they reffuse to assist me with picking the phone up for repairs/replacement. But they were very fast to take the cash and deliver. I feel that this is anaceptable and that they don't care about their customers.