POOR SERVICE AND QUALITY

so i am currently 8 months pregnant and i was craving calamari this weekend so we popped down to OB in centurion mall of all the restaurants that serve seafood..i was totally disappointed in the service and the food! firstly, the waiter was completely deadbeat, everything you ask him he doesn't know. we ordered starters and were completely shocked at the quality and the quantity. the calamari strips were salty and burnt. the deep-fried prawn sushi was like raw so i could not even eat it as I am pregnant. then the main meal was a total mess. My husband ordered the prawn and calamari combo which was priced for R224 and he received a childs portion, this is not the service we previously received. i had ordered the calamari head and tube main and i received a completely burnt portion of heads. we then complained to the manager, and he "REPLACED" the heads with a new batch of burnt heads. I'm very disgusted at this service. i mean my bill was around R670 but honestly what i am paying for? this service is totally unacceptable. i will take my pregnancy craving somewhere else!! total *******. i still have my slip and many photos and would the head office to contact me