I went shopping with my husband as iI am registered disabled and he needs to carry our purchases. There weren't any trolleys available. I purchased two bottles of hand sanitiser, the check out lady thought I had brought 3 bottles, I said I hadn't but rather than her check the bill I produced a letter from our doctors stating that we are entitled to double restricted items. The manager was called, he didn't glance at the letter and then told me it wasn't valid. I can send a copy of the receipt and letter. I complained and was told these were challenging times, which I guess means you can just ignore medical advisory letters.