My response today from the help desk:

Apologies for the confusion generated by that tax message. It's shown in error. Our team is aware of the issue and will fix it soon.

Meanwhile, we have checked your information, and everything looks okay. Once the payout is processed, you will receive it normally.

Please bear with us as the June earnings for the Partner Program are still processing, and have not yet been sent.

As soon as I get paid, I'm OUTTA HERE. They are going belly up, in my opinion.