Unknown deduction from bank account

On 31 August 2015 my pensioner mother, who lives in Lambertsbay, 500km from Multichoice office, saw a deduction of R926.27 on her bankaccount with reference reflection of Multichoice. After phoning the office a few times with no respond, she decided to go to the office in person. After an hour of at the office, they could not help us but said the matter will be referred to the accounts department in Johannesburg. They promise to inform us still that afternoon what was the outcome. After a week we did not receive any phone calls. I decided to go to the office again. Again they told us they can not give us an answer for they did not receive feedback from the accounts department. At this stage, they do not give a damn for the money they have taken from her and if she survive the month, they have the money but can not give any answer for why they took it from her bankaccount and although they tell us that they see on her account that the money does not reflect they cannot credit her for the wrong deduction. <br> I really need feedback on this as soon as possible for the bad service and feedback at the Multichoice office!