The 3 April I got this answer from GildenDKP:
"Hello,
we will investigate and send you a solution.
Yours GildenDKP Billing Team"
Then not a word from GildenDKP,
I have contact you atlest 3 times to see if you had come up with a solution for Our site. Not a single word from you again

Today when I got home, the site was closed.
I'd say, this is not my mistake!!! Put the site back up and give me solution how to do.
Edit: I still have a open ticket for this. Maybe its time to read that!!! (Tickett id:441521)
/Isathor