Despite the definition of 'ban' being the same in half a dozen
dictionary's, Desperate Dan Smith has latched onto the 'fact' that the
definition I quoted isn't in the OED. Pathetic I know, but bless him, he
has to try something.

Desperate Dan Smith claims to 'subscribe' to the OED, so he can no doubt
quote it verbatim to prove his point.

I'm sure someone with his legal training will provide the evidence to
prove his point.