Poor service

I've purchase the Queen curve bed on the 30 April 2015 with Groupon online .I phoned them in a week time to find out when are they going to deliver they said in 72hrs..then i got a missed call from Groupon ,,phoned again they told me they will deliver the next Monday which was the 18th May .I have waited till now and still waiting. The driver Michael phoned me on Monday 25th May 2015 saying he is on his way and he will be @ my place between 12pm-13pm. But didn't came i phoned them back the very same day to find out what is happening they said the delivery will be the next day without explain why & what happened to the one Michael was supposed to delivery someone is not doing his job , this is not acceptable.