I submitted a pre-approval letter from my CU for 3.25% vs Tesla's 3.75% rate over 60 months and they approved the rate refund within an hour. Looks like they're sending a check for $700 in a few weeks. I'm refinancing once I get my registration in at 2.99% over 59 months. I'm assuming I can use the refund check towards my refinance? Tesla didn't mention having to pay back the refund under the Rate Match guarantee.