Billed for contract I never signed up foe

Hello<br> <br> On my Jan 2015 statement I found 2 contacts that I never signed up for, an Airtime Contract Plan and a Mobile Contract Fee, both at R19.99 each. I contacted the call centre and was told to contact RMC on ***. I logged a call with the RMC (***). I per the guy from the call centre he requested for both contacts to cancelled and for me to be refunded. I logged the call on the 2 Feb 2015, and my Feb statement and March statement has these charges on them as well. <br> <br> Please can you assist in rectifying the issue as I never subscribed to these services, I don't need them and I don't want them.