I can't remember the choir, perhaps they didn't come here, or it was mentioned when I wasn't at the Hall for some reason, though I rarely missed meeings at that time unless I was ill or on holiday. I can't say I heard anyone mention them though.
This particular fund raising effort sounds very suspicious though, considering the healthy-looking nature of their accounts. It sort of reminds me of the reading of the accounts at every Assembly, when there was always a deficit, and we were guilted into running to the donation boxes to make it up.
Let's face it, very few, if indeed any, religions are better than the Watchtower at getting money out of their followers.