Trying to rebook my flight to South Africa that was booked on Delta with Virgin Atlantic Miles. Their website says to contact them via SMS if you're not traveling in the next 72 hours, but I've tried twice and keep getting responses telling me that they're only handling people flying in the next 72 hours. I get it, but why does your website say to use this contact method?

The longer version if anyone cares:
I booked Delta One Suites outbound ATL-JNB using VS miles and QSuites returning CPT-DOH-IAH-DFW-SAT using AA miles. I can redeposit the AA miles for free, and I've already found QSuites availability and put it on hold for CPT-DOH-DFW-SAT in November. Since there is no Delta One availability on ATL-JNB at low/saver/whatever we're calling the rate available to partners, I'm hoping to be rebooked on VS metal ATL-LHR-JNB for the outbound. I'd really like to confirm that they'll rebook me before I ticket the AA reservation, but they won't answer me. Yes, there are much worse issues going on in the world, but I find this frustrating.

Here's the information from their website. What I find confusing is that it says you need a VS flight number but also says it includes Flying Club bookings. Award bookings always carry the operating carrier's flight number. I'd appreciate any insight any of you might have because my post from several days ago in the VS forum has received zero responses.