Hey {first_name}, 

It's been awhile! In my notes, I have your renewal coming up. I just wanted to let you know that I reworked your quote and was able to get your auto insurance to ${price_quoted_-_auto}/6 mo, using the same information from last time, along with the updated home premium of ${price_quoted_-_home}/yr.

Hopefully that'll yield a nice refund check.

How does that sound?