Appalling customer service

This morning I went to your branch at CT in golden acre to find that it was being renovated I was then directed to the one by the CT station when I got there there was a queue and no cashier I could see a manager walking up and down but not saying anything to us customers. I thought to myself let me just wait maybe she will address us, a good 15 mins went by and I was starting to get irritated when she finally casually came to us and said they only serving coffee to my surprise I asked her why she hadn’t told us earlier she turned around and said she did before I got there. The amount of people behind me just turned around and walked out, this is unacceptable customer service as we were not there to get the food for free we were gonna buy it and knowing that one of their branches is undergoing a revamp they should be more prepared.