Guild Wars 2

first of all, they messed it up by them self, they was going to refund a payment, for a 3rd game, since the payment site whent down, and i dident know it whent trough.
i made it clear that they shouldent close the account i was playing whit.
but they closed my account, they tell me to by a new serial key, i use this key by im still blocked..
and this morning my sons account is allso down.
and i have no clue why i cant login, but saying if i can login here, i can allso login into game aint working.

i have 2 accounts, 1 for my son and me..
cant login to either of them, i was asked to buy new serial key, i attached to my account, and thats where all whent wrong, key dident work, and my sons account dont work either now..
total i bourght the game 4 times, none is working.
and support, take way to long for a respons