Getting debited for promotion 5gigs

<p>I recently upgraded my contact in June and was offered a free once off 5gigs promotion. The very next month Vodacom debited my account for the 5 gigs and when I called them to complain they said they would rectify it and reimburse me. The issue was never resolved because they have continuously debited my account thereafter on a monthly basis for an additional 5gigs data. I called them and they not resolving the issue and I did not receive any refunds as well. I am very disappointed in the recent bad service from Vodacom recently. </p>