"One way this is accomplished is by your monetary contributions that support the printing, translation, and distribution of publications that draw attention to the ‘life-giving water’ found in God’s Word, the Bible."
After listening to the letter read last night, and reading the OP again, I don't think it was the usual routine letter. I think it is a reminder to donate for the NWT which everyone got for free a few weeks ago. With the date of the letter being Oct 18, only a couple of weeks after the new release.