Frustrated customer seeking help for a pensioner and elderly customer

This is the second bad experience I am receiving from Edgars/RCS. They seem to target the elderly. The first was an aunt of 93 which eventually was sorted out. Now it is my mother in law. Although bent and frail and can hardly walk she went into Edgar's at the Midlands mall in PMB on the 03.03.25 and went to close her account as she has not bought for years and was paying the funeral policy on the club account. She kept paying and was not receiving statements so she stopped. When she went it she told them she wanted to close her account completely and does not want to have the club or funeral policy. They made her sign the documents and said the account is closed but she had to pay R720. 00 which she did. She still received SMS saying her account is in open. She asked me to call them to find out if the account is closed and a gentleman by the name of Mikel (not sure is the spelling is correct) helped me and said he needed to speak to the person whose account is current. I explained to him that she does not live with me and I don't want to know any other information on the account except to find out if they closed the account it on the last visit to the store. He said he needed an email or phone call from her to say she is allowing me to talk on her behalf. I told him she does not have reception from where she lives and she is frail. So where do we go to from here as they are continuing to charch these fees on a monthly basis. Do you think this is fair to an elderly frail person to run around in circles or is it a new tactic to target the elderly frail customers and make the pay as much as possible. Please help thank you Cynthia ***