PG Glass beyond useless

I have been trying for 3 days to get a window replaced through ABSA iDirect and their service provider Europe Assistance with no joy. PG Glass keeps messing the order up saying they are waiting for authorisation (which they have had from both ABSA and Europe Assistance). Eventually last night ABSA got them to call me so that they could come out, they had 100 excuses and promised me they would be here first thing this morning (I then cancelled my morning appointments). This morning I receive a call again (someone with a seriously bad attitude) to say they will try for this afternoon. THIS IS HIGHLY UNACCEPTABLE SERVICE!!! If I was not forced to use PG Glass by my insurer I would have taken my valued custom somewhere else long ago....