CELL C REFUSE TO REPAIR MY PHONE AFTER I PAYED

MY PHONE WAS BOOKED IN ON 01-AUG-2017 FOR REPAIRS, INSURANCE REQUESTED PAYMENT BEFORE APPROVING CLAIM.I PAID ON THE SAME DAY, ITS NOW FOUR WEEKS LATER MY CELL PHONE REPAIRS HAVE NOT BEEN DONE YET.CLEARLY HAS NOT BEEN APPROVED OR MY PHONE IS MISSING.I HAVE BEEN CALLING CELL C HEAD OFFICE FOR 5 WEEKS NOW AND TODAY AGAIN THEY TELL ME MY PHONE IS NOT READY FOR COLLECTION. ITS BEEN TWO MONTHS, I PAID WHAT THEY REQUESTED AND THEY ARE FAILING TO PROVIDE THE SERVICE.