Unkown contract upgrade

<p>After my 24 months of using vodacom data plan, my number was blocked as I decided not to upgrade it. My contract ended in 2016 and my number was cut off in January, I noticed that vodacom was still sending me statements and tried to debit my account. I reported the matter to the voda shop in saveways(Witbank) and I was informed that there were upgrades done under my name. A dispute was raised with the service provider confirming that the matter was *****. The dispute reference number is EC-OBDC-26MUC5 and the number that was ****** is ********** . I keep receiving the statements and have send an email to the accounts depertment about the matter but now I received a final demand letter with amounts around R30K. The upgrade was made in Clearwater and I had not approved the upgrade.</p>