Yep, same thing happened to me today.
Waited on hold to talk to someone, got transferred twice to other people, they said it was a glitch and the collections dept could mark my account paid. Collections dept hung up on me.
So I chatted with someone for 45 minutes. Sent 3 screenshots showing my payment (they could never receive any of them). Finally after all that time they said try back in a couple hours.
called again, got through to someone who said they have no record of payment. I'm not wasting any time on this for the rest of the day, will see if they update it tomorrow or something.