Today I wanted to buy the HD expansion via Ultimate pay, the first time when I clicked on Ultimate pay it worked and I could fill in the code from paysafecard, but just when I clicked on 'checkout' it logged me out and sended me to the login screen, I logged in again and clicked on ultimate pay again, but all I get is an error and thats it, I dont know if it has received my payment or not and I didn't get an confirmation or anything yet, please help

thank you for your time