Customer sacrifice for R15

We sat down at Mugg & Bean and ordered our coffees as well as our glasses of tap water. When the water arrived it had a terrible chemical taste, we then sent it back and asked the waiters to taste it, they then confirmed the terrible taste and we then were forced to order the bottled water. We requested only one and then informed the manager of the problem. He arrived and immediately had a rude tone when talking to us. He told us that there is no water problem and if there is it's not possibly his fault and we should contact Tshwane and complain there and that he simply WILL NOT give us the one bottle of water on the house. We asked that he taste the water because there was definitely an issue.He told us he would be back shortly then stormed off and never returned. The kitchen manager came out and told us perhaps there is a issue with the sanitizer remaining in the glasses. So disappointed with the service as we have never received this kind of treatment from a MANAGER.