Why do you have to deal with Marco's vendor of the stencils?
I've heard this story more than a few times now.
I should think since Marco sold them to you, he would be on the hook to make his customer happy.
Marco is your vendor. Twisted pins is Marco's vendor.
Quoted from Enaud:I had an issue with them on my Bally 8 Ball Stencils.
https://pinside.com/pinball/forum/topic/stencil-users-check-your-stencils-carefully
I bought them from Marco, and had to deal with TP to get it fixed.
They made it right, although the replacements were labeled incorrectly.
It was a frustrating experience because I had to re-sand, prime, paint...
If you can find someone else, it might be worth it to try someone other than TP.