Snail paced service

I am kind of fed up having a hit or miss at Spur, maybe I go there too much after knowing that it will either be a good or bad experience. On the 20th we went to Spur in Sunward Park, first there were no snails, this I can maybe look passed. But the lack of snails to eat was replaced by snail paced service from our waiter. In 2hours all we had was a starter each and two drinks, he would come to the table bring drinks and leave before checking if we would like to order, food took forever, drinks took forever, we decided to skip mains due to the slow service and not wanting to spend the entire night there. Then I decided to pay with my many Spur vouchers on my card, instead of taking 5, they take 6, and state sorry no change. All fair and well, but not my mistake. Also I then get asked about waiter's tip, seriously? After horrible service and then billing a R50 voucher by mistake, I should fork out more? No ways. Should I rather drive further in order to get great service from Birchwood branch, or will Sunward shape up a bit?