

Tello gives you a real (US though) number, E911 and all, for 5 USD a month. You get an eSIM you can activate from anywhere in the world via Wi-Fi Calling. Send and receive unlimited texts and get 100 minutes a month for the odd service that insists on verification calls rather than texts. I’ve had zero issues.
Anti-abuse measures such as this are generally designed to not provide that kind of feedback. The website developer is modeled to be an adversary, and you don’t volunteer valuable information on what has worked against your countermeasures, and what hasn’t, to your designated enemy.