OK I just completed the questionnaire online, and I printed out the completion proof, and an additional proof page that the questionnaire has already been entered.

But I am not stopping there, I will be going to the post office on Monday and sending out the completed physical form with full tracking and signature requirements. The physical form also requires a copy of my EAD, which I will provide also.

I am covering all my bases as best as possible.

Worst case scenario, they send me another mail that they never received anything (which would be unbelievable beyond words), then I go to court and prove my case there.