Perhaps suggest she contact Trading Standards for advice. I once bought an item that was very expensive that went wrong from day one. I made the mistake of letting them repair it on numerous occasions and it never worked properly. By the time I had had enough, and asked for help, I realised I should have rejected it at the start, as being unfit for purpose under the sale of goods act. There are rules and regulations that need explaining by someone who knows the rules. Most of us don't really know what our rights are as a consumer, and it really is best to seek professional help. Trading Standards were brilliant with me, I would recommend them highly. They helped me to get my item fixed to my satisfaction.