VODACOM SERVICE FAILS AGAIN

PLEASE HELP !!!! Last week i received an SMS stating my phone had been upgraded. Which i never upgraded. I merely ask for the packages and a quotation be sent of the packages however received nothing. A month later i receive an sms saying ive been upgraded. No contract , no docs , no quote , no new phone , no reply to my mails and calls. Last week your call centre calls me and says need to go back to the store where i upgraded and cancel the deal and return the phone. I did not go to a store or have any phone. The caller speaks to management and says we will call you back now. Its now 3 days later!!!! CAN SOMEONE PLEASE SORT THIS OUT ASAP