I DID IT! Success!!! MDE #2!
Got the nerve up to call IT today, 407.939.7765 (and 407.939.4357 I think?), to have the new account created and all future items and tickets transferred over from my MDE account. Assuming you need this done (yes, I get that alot of people do not - that's great for them but I do me), my thoughts:
1. Be choosy with the CM you pick for this LONG, scary call. Just hang up and call again if the person doesn't sound like they've heard of this. (Along with FOP FP for mid-April that I cannot lose, my family has dozens of tickets worth $$$$ so moving them between accounts is scary to me.) Second try I got fantastic CM "Raven." She clearly already knew about this problem/project, and was able to hold my hand the whole time (took about 2 hours (you don't have to stay on the call - they'll email you when done and you can email back if any problems)).
2. The CM you are talking with doesn't actually do the transferring (a 'back room' person does), but she sets it up with you (you have to go to your computer and set up a new MDE with never used email - she checks that your email address has never been used in any way with disney). Don't do this before you call - wait until they tell you to set it up (I know it shouldn't matter, but that's what she said - maybe it ruins their search for it being used previously?). I liked staying on with her (I did so for about 40 minutes) because after they got all of 1 person's tickets transferred (you can watch both your old and new accounts as they work on your computer) one was missing. Raven was able to tell me not to worry - normal - they go through at end, etc.... But she did message the back room person (Carlos) and by the time I got back 2 hours later all is there - all the many park tickets, ADRs, FP, MBs, friends/family and hotel ressies were there. You do have to set up your credit card again (to make future ADRs, and charge to resort, and re-do PIN).
3. I'm using a new gmail email (its free) for the new MDE account. I set up gmail to forward all emails to my regular very old (not gmail) account (i.e., the email that my prior MDE account was linked to).
4. You get an email when they are done transferring (if you can't stay on the call, or even if you do). You can't call back the CM you spoke with (like you can with resort reservation CMs sometimes), but in the email they tell you to email them back if anything is missing/wrong. I.e., you can email back the 'back room' person who did the transferring (or maybe its the dept. generally, I don't know).
5. FYI: They'll ask you which MBs you want transferred over, and which people you want to remain linked to. (They knew to move the AP card, so they are smarter than me - I didn't think of that.) They'll re-do the invites automatically (say, between you and your spouse or whoever you linked to in past).
6. She said its a known 'situation' (that MDE accounts fill up and stop working well), and they are trying to "increase the stress limit."
7. Raven said it took her 4 tries to even open my MDE (at the start of our call) - computer couldnt even find it before 'timing out' the first 3 times - because it was so overloaded, so she was sure I was a good candidate for a new MDE account. She did say mine wasn't the worst at all - she said many local people have more in their MDE accounts. (Raven used far more fancy IT words than I'm writing here.)
Its great! I can see my MBs, and for the 1st time since they added the modify resort ressie online: I CAN! (I tried it just for fun - canceled out before actually modifying.) I could only cancel all these years.
I survived it and (if you also need this), you can too!