So you have a formal right to park on the land in question?
Hi. Thanks for requesting me.
This is not really my area though so i will pass you onto a land lawyers.
I know the location. I used to work in Newbury.
Who is authorising this company to 'police' the parking area and fine you?
Any notices displayed?
Notices prohibiting parking?
You will need to contact G24 Ltd and inform them of your right to legally Park where you do. You can send an extract from the lease and any plan showing the parking area. Maybe a letter from a firm of solicitors would help.
If the parking attendant comes on to your land, it is trespass. They have no right to enter upon the land and place tickets on the vehicles parked there.