Hello Christian,
the most here in the forum are not employees of Adobe, we are users like you. Therefore, it is necessary to present your problem to Adobe itself.
Here you will find how to "Manage your membership and payments":
>>> Membership & account >>> Renew, extend, or restart your membership >>> We will automatically renew your contract based on the current price of the offering. >>> ... See Renew, extend, or restart your membership.
If necessary and for further questions click through http://helpx.adobe.com/contact.html and if "open" please use chat, I had the best experiences. I quote from Adobe's employee Preran: The chat button is activated as soon as there is an agent available to help.
Good luck!
Hans-Günter