Bad service, bad communication and filthy glasses & mugs

On Sunday 14 October 2018 myself and 6 friends/family went for breakfast at Wimpy V&A Waterfront after we all completed the 10km Outsurance Gun Run. 5 of us got there at 10h00 while 2 has been there for a a while. One of them complained that she had to send her coffee back as the mug was dirty and sticky on the outside. Their food came at 10h10 and the rest of us placed our drink order and food order with the waitress. We waited for 30min before i went to ask the waitress for our drink order. The order was three milkshakes, one bottle of water and one coffee. She came 5min later with three milkshakes. She got the coffee order wrong and i waited another 10min for my water. When the water came the two glasses she brought were dirty and not washed properly. At this point i asked the waitress how long the food was going to be. She assured me that they were plating the food and it should be there shortly. We waited another 20min before we had enough. I asked to speak to a manager and cancel our order. The manager said they were very busy (which is obvious considering it was a big race). We were patient to a point, but considering we had to wait for more than a hour for breakfast (which was still not done) it's needless to say that none of us will be going there again. There was no commutation from the waitress or management coming to let us know what was happening and why everything was running late. The fact that we had to approach the waitress and manager more than twice to find out what was happening is upsetting and disappointing.