EXTREMELY BAD SERVICE VODACOM

Despite my previous review as well as Vodacom's response of 23 March 2022, this problem has still not been resolved. My Mother is 73 & this is becoming a serous problem. I was contacted by Vodacom, the relevant agent said he would sort the problem out directly with my Mom as its her phone and still it has not been sorted. I received the following message from my Mom

"I am still having trouble with Vodacom. I have been trying to pay online using my credit card, but am not receiving the OTP number. I phoned the bank and they say it could be as a result of an upgrade on the phone which has upset the settings. I phoned Chris at Chatz Vodacom in Waverley and they are still waiting for the problem to be sorted. Please contact Hellopeter and asked them to look into it. I am really getting fed up now.!!"

PLEASE WHAT DO WE NEED TO DO TO GET THIS SORTED OUT