Sorry for the delay in replying on this. I've wasn't really online this weekend at all. The first time I booked, I made calls back and forth from Chase to Disney because I only had the trip ID (which has nothing to do with Disney) and the long number with the dash in it. Finally on one of my calls to Chase the rep told me she'd have to transfer me to a specialist to get me the vendor confirmation number.
Once I had that I was able to call Disney and explained to the rep I had booked a resort stay through Chase and needed to convert my booking number over to their system so I could link it in
MDE. IIRC I was transferred to a supervisor. I gave her the "vendor confirmation number" Chase gave me. She told me since I had just booked a day or so before the reservation might not pull up in their system yet, but thankfully it was there. If you just booked on Friday, I suppose it is possible the reservation had not pulled over into Disney's system yet. Maybe a weekend problem? Sorry you're having so much trouble. On one of my calls to Chase I was also told everything would be set up just a few days before my trip. When I told them there was no way that would fly because I needed to book advance fast passes and such, I was transferred to the specialist to get the vendor confirmation number.
I honestly thought they had corrected something in their system recently because the trip I just booked had what was labeled as the "hotel confirmation number" right on my email. There was no other number with the dashes, like last time. I entered that hotel confirmation number into MDE and it pulled up my booking. I'd say maybe give it until the end of today or one more day and call Disney again. Maybe ask to speak to a supervisor. Hope you're able to get this sorted out. I sure know the feeling and nervousness of not being able to link your resort reservation.