Wikideals acting in bad faith

I bought a wikideals voucher for a meal at Obz cafe. I was told at Obz on the same night I bought the voucher it was no longer a deal, anyway the decided to help us. 50 minutes waited for the food. Was the most horrible dried out burned meat, not adding up to the voucher, returned the food. Left. Contacted wikideals 6emails and 2months still no refund, they not even replying to me emails anymore. That is wikideals for you. Refund my money please. You are acting in bad faith. Regards Abdul