Terrible customer.service

<p>I have been contract subscriber for more than 12 years, and am outraged with the level of service i am receiving from mtn. I had a recurring 2gb data bundle with which i had cancelled in november 2016, since then i have not received the data bundle but am still to date being billed for it. I have logged this as a query month after month and am always told that i have to dial the ussd code to cancel which i keep doing month after month but yet every month i am yet again billed for it. Is this how mtn treats a long standing customer refusing to reimburse me and expecting me to keep paying for an item i do not receive</p>