Poor service and full of ****s

I upgraded my contract few months ago and the agreements was that i have to pay R430 per month and they deducted R630 i called the cellc department to ask what changed the agent told me i have subscriptions i dont know about i told them to cancel those subscriptions yet the other month and this month they still debited 630 and i dont remember subscribing to anything since the sim card is on the wifi router