Increasing my plan

Was thinking of increasing my plan with Telkom Mobile, I went to the store to find out what documents are needed because I wanted to increase the plan that I am on as I am constantly calling to the call center to have a data bundle added.<br> <br> Went to the bank and got all the requested documents, when I went into the store to upgrade the plan I am on, I was advised that my phone (iPhone 5s) is no longer supported and I am on the highest available plan for the device. 50minutes and 500mb data the highest for an iPhone, really???<br> <br> Older phones are support why not mine?<br> <br> What happened to customer satisfaction and wanting to keep the customer happy?<br> <br> I called the call center and instead of trying to find a solution, they advised me to take another contract with a higher plan, do I really want to do more business with a company that can't even help with one simple request?<br> <br> Definitely taking out another contract, but not with Telkom Mobile. Maybe Vodacom or MTN will be grateful for my business.<br>