Bad service!

I received a Groupon vouchers from a friend for my birthday. Unfortunately I could not use the voucher as I was out of the country and traveling quite a lot in the last two months.<br> <br> I tried to phone Groupon since Sunday with no luck - you are always in a que for ever and then the call gets cut... I eventually sent them a e-mail on Monday with also no response. Eventually after holding on for 20 minutes this morning I got through and after 5 minute conversation with the lady, she hung up on me! After holding for 20 minutes, she can't handle my frustration! So not acceptable!!! I insisted on speaking to a supervisor and she rep**** on-one is available. On asking why my e-mail has not been answered she responded that my e-mail was not valid and that is why it was ignored!<br> <br> I was just informed that they can't renew the voucher but they will refund the buyer with credits (to purchase again).<br> <br> My question:<br> <br> Why is it the customers problem if they have a backlog?<br> Why do vouchers have an expiry date - if you paid for something surely you must receive the product/service??<br> Why do I have to stay on the line for over 25 minutes to be cut off by someone who has NO customer care service?