I ordered a service at a discount on Groupon. The vendor didn't answer their phone. Though frustrated, I get it, we're in a pandemic. I contact Groupon to ask for a refund since it was no fault of my own. They only offer Groupon bucks as an alternative. I was frustrated. So I am now checking back a few months later on my account and Groupon never even gave me the credit in Groupon Bucks. Honestly, this is one of the most sketchy companies with poor customer service I have seen. Makes sense their stock is tanking as they're losing customers/ revenue.
Pro Tip- If you want a service you see on Groupon, call the service provider directly, 9 out of 10 times they will honor the Groupon price since they don't need to give Groupon an additional spiff on the transaction and you have security in paying directly.