STILL MY CONTRACT NOT BEEN CHANGED AFTER REPORTED

My contract was changed while due for upgrade, reported it and they called back to say it was changed. only to find out that still not changed after 4 moths am told that the current contract expires in two year while am phone less and paying the contract . and when doing follow u found out that not all the Vodacom shops Can be able to help cause my number has been migrated to the new software which is used by few shops. this is difficult and hurting