Wrote a email to Gropy, thats what they replied: Thanks for getting in touch with us and for letting us know of the bad experience that you have had while redeeming your Groupy voucher at Oceanview Buffet Restaurant.
We are sorry for the inconvenience that this has caused you.
We really appreciate you taking the time to let us know of your feedback and this will definitely be taken on board. We will be contacting Oceanview Buffet Restaurant.
For your refund request this does need to go directly to the merchant.
We hope that you will continue to use Groupy in the future.