Phone not fixed afrer 3 and half months

In first week of December I sent my S4 Mini handset in for a screen replacement, covered by insurance with MTM. To date I have still not received the handset back or received communication what the status of repair/replacement is.<br> It is impossible to get through to your customer service as one is kept on hold forever wasting time and even more money than the insurance being paid for oast 4 months on a phone I dont have.<br> This is totally unacceptable customer service.<br> <br> I expect urgent action. In fact at this stage I expect a new handset as well as being reimbursed for any insurance premiums paid for the period that the handset has been in MTNs hands.