Sunday 31 May 2015 9.00pm
Don't bother complaining to the management.
In the UK bouncers (or "door supervisors" as they are officially referred to) obtain their licence from the Security Industry Authority who may revoke
their authorization if they are found to not adhere to the code of conduct.
I suggest you make a complaint to them, and be sure to include the date and time, as well as letting them know you have a witness (you friend who was followed by the bouncer) who is willing to corroborate your account.
Don't get mad: get even...