Vodacom's Poor Service Delivery

I have been a Vodacom customwer for over 28 months and I have 2 contracts with them.My phone Sony Experia 10 is insured for R151 per month and it got damaged screen for about 2 weeks ago and I took it Vodacom Store for repair in Jabulani Mall and was told it would be ready for collection within 3-7 working days.I had to make a follow up with them personally without any luck and today I was told it is BER,beyond economic repair.That has happened after over 2 weeks instead of 3-7 .working days.