"Disabled parking"

In the main disabled car park and also one near the Ashton centre there is a kerb separating the cars going in and the cars going out. There is no bollard or marking to make this kerb stand out and with it being so low this makes it dangerous. I have caught it twice whilst driving in, fortunately with no damage to my car. However I am sure it won't be long before someone does cause serious damage to either their wheels or the car underside. Surely all low kerbs in the middle of a road or entrance should be marked as they are on public roads by a bollard.