The worst expireince i've ever had with Vodacom

I had a contract with Nashua mobile and i paid my regular monthly payments to them till December 2014. Soon after i paid my installment in December i was then told that Nashua was no longer and Vodacom took over my account. since my account was taken over by vodacom, i have experienced terrible service. They don't communicate with me as their client. i have given them my alternative number for them to contact me since they blocked and deleted my contract number and they just don't bother. The supervisors Mahommed ( in Feb '15 ) and Veronica( in Jul '15 ) promised to call me and they don't. worst of all when i call in to ask for them no one knows them, its like they don't exist. vodacom consultants and supervisors don't know how to rectify their mistakes, but make their client the enemy and make me pay for interests I'm not liable for. i will never recommend Vodacom to anyone for a contact service. I've been through nothing but a waste on my credit record from January till date. Now i have to pay R100 penalty fee for their negligent mistake. I truly prefer Nashua mobile for their excellent service i had with them for 2 years. I hope my problem is heard.