Costa Coffee review: disabled toilets

i visited the store wed 18th dec ordered my coffee and food . I then proceeded to the disabled toilet as i am partially disabled and was disgusted to see the cleanliness in there not because of previous customer visits but the company or staff lack of hygiene cleanliness. The toilet itself ie seat area was filthy and the disgusting state of the toilet brush actually made me make my way to the counter cancel my food and walk out. I visit your branches quite often in various yorkshire regions and have never experienced this in other branches. I feel that this matter should be addressed and corrected as there is no way this branch would be given a 5 star rating for hygiene and cleanliness .