Neighbours being difficult

[Peace13]

Hi I live in scotland and have heritable and irredeemable access over a neighbours land to be able to come and go into our property and garden. The neighbours deeds state “a non exclusive servitude right of pedestrian and vehicular access over the ground tinted yellow and blue on the Title Plan subject to making good all damage to the surface of the ground”. Our neighbours have recently removed small items belonging to us such a small plant pot and milk crate stating we are not entitled to leave anything on the land. Is this reasonable? Can they remove and damage our possession. Furthermore they continue to park at the beginning of the access and I wondered if they were in breach in the clause taken from their and our deeds “the disponees will be responsible for an equitable share of the cost of maintaining, repairing and renewing the access according to the user declaring that they are prohibited from parking any vehicles on the access or obstructing it in any way”. They leave enough room for pedestrian access but if we wanted vehicular access we would need to ask them to move their vehicle each time. Our deeds state the servitude allows “pedestrian and vehicular access to the subjects and for no other purpose whatsoever” Are there any other laws that would take precedent that would allow us to access this land reasonably for repairs etc without seeking their consent or permission?