*****! Unauthorised subscriptions being billed month after month!

Been trying for 3 months to cancel unauthorised subscriptions on my pensioner mother’s account. Every month we are told it has been cancelled, every month she is billed for subscriptions she never added. Vodacom call centre of no help. Unauthorised “subscriptions” she is forced to pay every month. This is daylight ******* and amounts to blatant *****.