I stopped buying scouts two seasons ago after trying three of them (strikers)... I was refunded by top 11 for not being satisfied by the first one , the second and the third proved to be total waste of money (I didn't complain again to Nordeus about them just to make myself remember not to buy scouts anymore.)..
Regarding the legal case and just to enlighten you since I am in the field... it might be true to put it as my words against their words ... but you forget the JUDGE ( which would be local and might take your side at least emotionally ) and the professional EXPERTS who will be invited by the judge to give their opinion and tell him that 99 % if not 100 % of the football teams in the world have three GKs maximum so selling the customer 4 GKs is a kind of fraud especially that he didn't give a prior approval for the subject of purchase ... that won't be difficult to prove and to win if you hire a good lawyer / law company.