Meaning everything is fine one day and then is completely messed up the next?

I hope I stated myself clearly, thanks.
Similar thing happened to me. I was shocked when logged onto my account recently and someone in MS had gone in cancelled one of our reservations for our trip just next month, wiped out all of my banked and current year points, 0 remaining out of 700!!! Some MS member did this on a Saturday, when I wasn't on the phone with MS ever.
I had only utilized 135 points so far, out of my 700 that should have been available. It took 3 hours on the phone and several 25-30 minute hold times, until I had no choice but to scream at the MS member and hang up! Honestly I can not recall ever having had to deal with such a rude person on the phone in the hospitality industry. The lady I spoke with had the gall after one of the 25 minute holds to come back on line to claim that she played back the phone conversation and say I did cancel the reservation. NO, I was very clear that we only wanted to cancel being on the WAITLIST for a grand villa, not our current reservation. So now we were left with no reservation, no waitlist, nothing. NOT even an apology! She was like totally of the mindset - it's the customer's fault.
The Disney MS system for reservations is AWFUL!!! No online reservations, no cancellation or change confirmation #s, many MS members that don't understand you on the phone because of language differences. I appreciate that they hire people from around the world that speak many languages as people from all over the world travel to Disney, but it may be a good idea to set up the call center, with "for English, press 1, for Spanish, press 2, for Chinese, press 3" or something like that then be connected to someone whose first language is that language. I was so frustrated at several MS members who clearly did not understand American English.
Even Best Western will give a confirmation # for reservations, and a confirmation # for cancellations for your records. Also had same problem with Golf reservations on PGA courses at Disney. For example, was able to reserve on-line and get a confirmation # e-mailed to me, then needed to change the golf to another day instead so had to place a call, and was told on phone we would just have to use the same confirmation # but they have changed us on their books to another day and time. I requested an e-mail confirmation of the new time so we don't risk disappointment and get turned away, but was refused any kind of written confirmation. So their golf reservation system is faulty too.
As far as
DVC points, they noted on my on-line account that it was "manual adjustment" they had made. I certainly hope everyone keeps their written charts, original receipts of points used at check out, as you never know when your points will magically disappear!
On a positive note, after I hung up on the rude MS member I was speaking with, she did e-mail me later that she reinstated the reservations, and the points were corrected to what I told them they were supposed to be, but wow, I was not impressed at all with the sloppiness and the fact they are messing with accounts when you are not on line with them. From my experience, Disney should look into hiring a software design company that has set up systems for other hotels (like Best Western is good) and utilizes full on-line services as an option, provides confirmation #s, cancellation #s, etc. I'm sure the #s would get pretty long though with all the reservations that Disney must make, but it could be done, if dates, resort codes were placed within the reservation and cancellation confirmation #s.