Survey Says: "Surprisingly Satisfying Side-quest".
3rd parties usually verify quickly. I did have a few surveys where I made it to the end, only to be screened out or experienced a suspicious technical issue. I messaged the Opinion Outpost AI Bot, explained the situation (I had recordings after it happened once, so I started recording every survey), and they awarded me the points within hours without asking for proof. So far, I'm impressed. I've also cashed out $10 to PayPal, and it was quick and easy.