Unauthorised debit order off my account!!!!

Unauthorised Billing of R199 FOR WHO KNOWS HOW LONG!!!<br> <br> I have had a few struggles with debit orders going of on my account FROM 3MOBILE and don't really know from when and how many times it has happened, a year or so ago I stopped a debit order and had no idea what it was and for what it was. it stopped for a while and on the 01 October it began all over again.<br> I NEVER signed anything concerning 3mobile. I would pleas want this to stop and Please reverse ALL the billing amounts. and PLEASE REMOVE ME FROM YOUR DATA BASE!!!.