Nephews 7th birthday ruined

On Sunday the 1st March we planned to take my nephew to Spur steak ranches for his 7th birthday as he received a card in the post stating his club card has been loaded with a R50 meal voucher which he was very excited about.We went to Spur in Kenilworth centre and when we handed in his club card they checked it said its not registered and that theres nothing loaded on the card.They contacted their call centre who coudlnt even find a record of him on their system.We requested the waiter to please sort it out as how could have received a card in the post and then be told theres nothing on it and thats he not registered or even on the system.The waiter who assisted us also brought us 4 cokes although we ordered 3 and adult Bar One milkshake although we ordered a kiddies one.The manager eventually came to tell us that theres nothing they can do about the card and that he cant unfortunately get his free meal and we had to pay for him which we did not budget for.We didnt want this to spoil his day so we stayed and ordered and spent quite a bit of money there although the food was not that great.Big disappointment from one of our favourite Spur branches.They took the details but to date