You might have gathered from my previous post on this but in case I didn't actually state it -
This is blatant anti GA behaviour. They all sat round a table and threw as many 'charges' they could make up on a list and are trying to price all GA out of the airfield - which was what they were trying to do in the first place.
Many of these charges either don't add up or would be illegal. £30 for an invoice, £350 a year for contracts, oh PLEASE.
Fight every penny and argue every cost - this should not be allowed.