I doubt they would want to open that can of worms since there must be thousands of others with #18 since the new kits were released. Anyway, I did call the day the squad numbers were announced and was told it was currently in customization but they would try to enter the change on the order and see what happens. So maybe there's still a slim chance...Tweet the club and him and tell them, they may sort a replacement. the club love that kind of publicity.