Easy to open a 24 months contract and a nightmare to end the contract after 24 months of paying instalments

My mom is a loyal vodacom contract customer, even though the customer service is poor. Her bank account is bleeding money to vodacom and she is near to pension. She has 6 contracts with vodacom and three of them have ended as per contract., We have tried calling Vodacom contract line countless times but it doesn't go through. Its really frustrating., and all she wants to do is to migrate these three completed contracts to prepaid but it's the most difficult thing ever as compared to opening a contract which is super easy. She ended up going to the branch in Makhado but she was told that she can only cancel the contract by calling the vodacom contract call centre of which the number never goes through even at the vodacom shop it's difficult for the sales agent there to get through the line. She is very stressed because every month there is a donation which she is making to vodacom and the stress is not good for her health at her age. Last month she was lucky to have finally went through the line and managed to explain her problem over the phone with an assistance from one of the sales agents in the Makado store.

The numbers which she called and was given by the branch are : ***821958

The first ref number she recieved by sms was ***, and it stated that her enquiry was recieved and she can track progress. She tried calling for update but was not successful as usual.

She further received another sms with reference number *** and till today she is still waiting for progress or closure to this matter.

Again another SMs indicating that her request will be attended to by 01-10 2021 and it was being processed by Lesley Deane but still today no feedback and guess what , a large amount of money was deducted again from her account.

Please help my mom hy cancelling the following numbers from contract to prepaid: *** *** ***

Regards Lutendo on behalf of my mother