Worst customer service I have ever encountered

I purchased a wikideal for a spa treatment for 2. I have been trying to get hold of the spa to make a booking with no luck they don’t answer there phone or respond to emails. The 1st booking I made over the phone I was told was not captured on the system on the day I then made second booking and have still not received confirmation of this booking. The voucher is expiry and I still can’t get hold of them to confirm my booking. This is so frustrating.