De Brasserie@ sportoase - I was a regular customer but I won't be going any more

I was just sitting waiting to take my son to his swimming class before returning for a drink. Was told to leave because I wouldn't buy a drink there and then. I tried to explain to the manager I would return shortly to buy a drink, she didn't care, I was asked to leave. I will never buy drink or food again for this brasserie. DO NOT VISIT, THE SERVICE IS APPALLING.