Imposed Club subscriptions and payment plan changes

My mom is 66 years old and has a Foschini account, the last time she bought on the account was in 2018 and her outstanding balance was about R2400, to date she has been paying the installment as required and informed by the store. In August 2020 she told me that she was concerned about the account because she's been paying the account but the balance is not going down and the account doesn't give her any credit. So we visited the store only to be told that she has activated all sorts of club subscriptions on her account, (that she didn't do) and that's why her outstanding balance was not reducing, so on the day we cancelled all subscriptions except life insurance on the account. Then the other day she told me that she still doesn't see her account balance reducing, so we visited the store again 2day 30 November 2020, the store clerk called the foschini call center only to b told that she activated the same subscriptions on the same day that she cancelled them, I know for a fact that is a lie, as I was with her that whole day and no foschini rep called her and she never called them. One particular subscription is a club magazine that she hasn't received now for the passed year and a half that costs her more than R55 a month, then they changed my mother's payment plan from 6 to 18 months without her knowledge, and imposed interest fees on the outstanding balance, while she thought her payment plan was 6 months and interest free. What's worse was the response from the 1st call centre rep, who put the phone down while the store clerk was talking to her then the 2nd one who promised that the supervisor would call back when back from lunch and never did. My view is that foschini group preys on the old and vulnerable and imposes fees and club subscriptions that they r not aware of in order to keep taking their money. I'm truly disappointed in foschini and the fact that they really do not care for their customers especially the elderly in particular, it saddens me that my mom has to spend her hard earned savings on ********** such as foschini group. While we were in the store, there was another elderly lady, that complained about the same issue and she was crying telling the store clerk that her income is very little and her daughter was paying her account on her behalf.