PIP awarded!!

Thankfully my sister has been awarded enhanced rate at 13 points.I am so grateful for the advice notes guidance Notes they are so helpful.! We had a home assessment lasting 1-1/2 hours. My sister was not awarded some points that I think she should have i.e. Complex information understanding of , she was not awarded any mobility previously she was on the lower rate. When asked what she would do if she was in an unfamiliar area alone which she never is (she will not do it and becomes very anxious) she replied as bright as a button oh I would just ring someone . I think this is a get out for dap because if she hadn't said this she would probably been awarded the 4 point which combined with the 4 points already awarded would have meant the lower award. I am concerned about the records being accurate is it worth challenging the care elements which have certainly been overlooked
The award has been given until she is pensionable age . Is it worth the hassle , for the record? I do think that being on home ground was a disadvantage for her as she was very chilled out and I think gave some giddy answers! Many thanks for all your assistance

Thank you I am so relieved the decision maker has sent a clear account of reasons for mot giving the mobility but looking at the points awarded she was only given two for preparing meals when she is a R hemiplegia additionally she has big problems with time and space so is a fire risk with microwaves she wasn't awarded anything for making budget decisions when she can't manage money at all nor can she understand complex information. The problem is that she presents as pleasant and competent when she isn't at all and it's only my word against everyone else. I do not want to rock the boat and we'll leave things as they are. It just annoys me when it is factually incorrect! Many thanks