Man, 15 basis points on a $4.2 million deal? That's like $63,000 just gone because somebody hit the wrong button. I would've been livid. The whole point of a rate lock extension is to protect the margin, and they just let it slide for three days? That's not even a weekend, that's like a Tuesday afternoon. Servicers act like they're doing you a favor when they finally respond, but they're the ones getting paid to handle this stuff. Honestly, your investor probably should've been more understanding, but I get why you had to eat it. That kind of mistake makes you want to double check every single document yourself, even the ones they're supposed to own.