Poor Service

I have had a bad experience with Vodacom. I had 3 active SIM cards with 3 mobile devices, two of the contracts was maturing in September. I received a call in March to increase my month data on one of the contracts I agreed. However, all 3 contracts were upgraded with out my concern and my monthly installment increased from R690 a month to close to R1300 a month. My case has been pending from April till date. My SIM cards were blocked from July/August due to non payment as I was advised to pay the monthly amount I used to pay via eft, my account is in arrears and have never received any feedback every call I make I need to repeat the same story and always have to wait for feedback, my partner keeps providing them with my number to contact me but nothing, as they always both him. Thought I would renew my contract but will never use them again. Poor service.