There is no such thing as a "closed" thread... In the few years I have been on this forum, I may have seen one or two "closed" threads, but that was because people got belligerent and stupid!
And I would say "congrats", but really, you did nothing to earn it... In fact it appears you did not even request a copy of the survey. Now say a prayer for (LOL) the many people who went to both a TBD and a TDN and then still had to appeal and are still waiting for a decision (and no, not even close to talking about myself)...
Then again, this got a chuckle out of me:
First you say you have no clue how/why it happened...
And then you are giving advice on how to accomplish the same result, even though there is NOTHING you can do to guarantee the same result!
So I guess everything, even the silly, has its value!
^Good for you!