The best restaurants serving Vegetarian food in Faraday Southwark London

Stopped by for tea and cake. Refused to serve me tea in my reusable cup saying unhygienic. I politely explained that can fill a reusable cup without touching it using a tray or mug. Really odd and rude response that coffee flown across world and so why was I fussing about disposable cups. Has to be the worst response I've had about this. FYI I asked for tea not coffee and coffee generally shipped by ship not plane! And one bad doesn't justify another. Real shame