Booked in a TV and still waiting

On the 22nd May 2015 we took a TV in with a fault. The screen had gone blank.<br> we were told it takes 7 to 21 working days to resolve and that once the unit has been collected we would get an sms.<br> to date no sms came. We went to inquire and were told it had not yet been collected. We then received a call a week later being told that they had ordered parts but don't or couldn't say what the problem was. Silence ever since. <br> On Friday 26 June we went again to inquire and it was 22 days (excluding weekends) and still nothing.<br> Even now after going in on Friday we are still in the dark.