Misrepresentation !!!

We had purchased a Groupon special recently for 4 people at R379 and visited the Adega on 27 March for a friend's 15 year anniversary. Firstly the groupon special stated a 55% saving, the prices were initially calculated from menu for each item presented was only a saving of R50 only (misrepresentation and against the consumer act policy). As for the waiter, \Daniel"(waiter) you were the climax of this entire evening. We ended up paying a sum of R600 for drinks and an extra chicken!!! that we did not order. How sneaky can you guys be and placed that under the groupon bill. No bread was presented to us upon arrival"