As to the ad-blocker on the payment verification page, it probably just wants to run some third-party JS for fingerprinting, to prevent the free tier being abus

As to the ad-blocker on the payment verification page, it probably just wants to run some third-party JS for fingerprinting, to prevent the free tier being abused. If you can figure out which domains want to set cookies, you can whitelist them in your ad-blocker.