We've payed our dues.... BUT: Often, we check to see if WDW has recognized payment.....
1-19-2016 to present - we see the "dues" page taking over 5 minutes to load. No lie - to check our payments, I left IE spinning in the background while I used CHROME to read all my boards

.
So - best advice? 1) CALL 2) Bet on the website actually working

. It's really not the website that has issues - it's the backend Data Base. Poor pathetic thing is MASSIVELY overloaded.
Personal comment: could you ever imagine
AMAZON having an issue like this?

. Now THERE is a company that "gets" Internet eCommerce

.
Oh - edit.... if you POST a dues payment.... IGNORE ANY WDW ERROR REPLIES. Instead? CHECK your CC provider's Web Page to see if a transaction was ACTUALLY POSTED.
We ALMOST got bit by this. We ALMOST paid twice.