Tough luck mate. I'm slowly (i.e., in all the years I've been using the site) beginning to learn that one or two or more bad UKP reviews is a very, very bad sign, only to be ignored if there are lots of positive reviews or if the authors of the bad reviews seem dubious. Fortunately, that means I have very rarely felt the need to walk, but I have done it, usually trying to sweeten the pill by handing over £10 or £20 for her time. After that, my fall-back is usually to go to a massage parlour for a rub and tug.
Better luck next time.