As you now know the Poly regular resort rooms are still closed with only DVC open and DVC only uses Member services requests (online or by phone) for requests beyond the limited Online Check-in options.
Your best and only option is to call central reservations and have your request(s) noted on your reservation and don't make any selections when you do Online Check-in as they will override any notes on your reservation.
Touring plans doesn't even do faxes. They have an email they use. And yes, for Villa Resorts booked on a cash basis they WILL do that if you're a TP member.