Blowfish restaurant in Blaauwberg don't appreciate customers

Last night I made a reservation at Blowfish for our anniversary. On arrival, we checked in and was ushered to our table. The manager then informed us that a waiter will be with us shortly and after about 10 minutes we looked around to get a waiter's attention to order drinks but no one was in the section that we were seated at. We waited a while longer but them got up and left. It's so funny that when we passed the waiters they all thanked us and wished us a good night further. It's funny cause that means no one acknowledged us coming in or that we're leaving so soon, it's like we were invisible. My husband informed the manager that we're leaving and he had a lousy excuse. We also sent them an email and the manager rep**** very unprofessional and poor grammar. My husband just wanted to do something nice for us and he was so proud that he made a reservation to impress me and it failed.