Bad service at Primi Cavendish

It's amazing how I ask to speak to the supervisor and they don't even listen to you. Complained about the inconsistent service and bad attitude from the waiters! He takes the drink that I ordered and kicks me out of Primi. This is the kind of service that you can expect from Primi???? Been coming to this place for years and never been treated like this when waiters are inconsistent and the manager /supervisor dismisses you when you identify a flaw in their service after 3 weeks of bad service!