Buytopia

I think they do. They (Groupon, Wagjag, Buytopia) all compete so have to have best business pracrices. I have had returns on Groupon with no problems. My girlfriends and I get great tickets to prime shows downtown through wagjag. it is a great way to buy and save. Good for the purchaser and good expsosure for the vendor also. We once had tickets for a high tea and they went bankrupt and groupon refunded our money promptly. i doubt you will experience any problems using this site but there are probably places to go to review it.
 
Have a very bad impression of this company.
Got on their mailing list who knows how (never did any business with them), and they wouldn't remove me.
Caveat emptor.