Shark cage diving

I bought to tickets on groupon about 6 weeks ago. I have been trying for 2 weeks after that to get hold of the the suppliers ididafrica. I got through once where I was told that the number on the groupon ad was wrong. I wanted to make a booking for the 2 or 3 May 2015. I got a reply from them saying that they have availability for those 2 dates. After I send them my booking numbers I could not get hold of them again not by e mail or any of the 3 phone numbers I had of them. I contacted groupon 2 weeks ago about this situation. I got an automated reply saying that they will get back to me in 3-5 working days. After 7 working days with nothing from there side I phoned them sending them all the relevant information they asked of me they send another automated reply saying that they will get back to me in 2-3 days. Again after 4 days after nothing AGAIN from groupon I send them another e mail only to te receive another automated reply saying they will get back to me in 3-5 days. This I find unacceptable. I have tired out all my resources with groupon and ididafrica and demanded my money back as in groupon policy it clearly states that if you are not happy they will refund you.