No follow up as promise

<p> </p> <p>Thursday the 17th of November I went to the opening of Dros Rustenburg and was very surprise by the warm welcoming and the fact that is was the opening. Everything went well until I placed my order of 2 schnitzel x1 beef and x 1 chicken. After 45min I call the waiter get an follow up on my food, she followed up and promise that the food will ready in the next 8mn that I was fine with! In this time frame the restaurant was only 60% full and could not use the excuse of a busy restaurant at time. I got up after waiting 1h20 to ask the Manager (Shaun) that was helping out from Head office to assist me with my issue. Shaun was very helpful and I got my food in 10mn time on my table. I asked for a complimentary coffee and it was offered with a smile, as the coffee was served the coffee was a more "tea" (light brownish) colour than the actual dark filter coffee colour this was poor hospitality (I could even see the bottom of the cup) I got up paid the bill and made a complain in the customer book , I then disguise the issues again with Shaun and was told that Customer care / Dros Rustenburg will contact me the following day to follow up on the bad service which they never did till this day!!!</p> <p>My question is how long will this restaurant last if they continue with these standards?</p>