If the support contract came with the refundable part, I'd be more enticed to purchase said contract. I so rarely have issues that require support a $25/per incident would still be so so much less than the typical prices of support contracts. To then have that $25 be refundable when it turns out there's an actual issue with the product would make it a no-brainer. After all, if your product wasn't broken, I wouldn't need the help of support. Which means you sold me something that doesn't work.

I really like the idea