Unbelievable Upgrade

We've been struggling to upgrade to an iPhone 6 plus for the pas two months since the \only"person who can work with our request is constantly on leave either death or annual an no other persons can handle our upgrade. When we had yo fill out a new upgrade we had a bad attitude (not Corn? but a different sales person) we cancelled all Telkom Mobile contracts. We would like to report the person as none of these people are doing their jobs"""