Service, What Service??!!

Since Nashua Mobile closed down and we were forced to join Vodacom, our lives became a living nightmare. NO monthly statements. Phone every month. Same story. They don't understand why we're not receiving statements re-loading system..... Then my data ran up to R2000.00 pm on my phone. STILL waiting for itemised billing. I eventually had them blocking my phone. On pay-as-you-go my data only runs to R600.00 per month. I'm only a number on a system. Every one I speak to is a supervisor. With no authority to help me at all. What a useless bunch. Now I must pay R22,000.00 to get out of my contract to put my phone and Iphone on pay-as-you-go. But STILL nobody willing to look into the matter of WHY everything is happening. I give up. Vodacom's service is up to S h & T. I was a Nashua customer for 20 years. Never had these problems. After a year at Vodacom I'm suicidal!!!