Thanks all for the advice, the problem lies with another livery on the yard. In the contract it says I can visit whenever, I used the BHS agreement template.
My horse went on loan to a lovely lady due to my work commitments which take me abroad at least once every other week. I go to the yard when time permits just to see my mare, to take her polos etc, loaner absolutely fine with this. Unfortunately another livery who is now friends with loaner has...