[manbackharry]

Absolutely fair to ask. It would be shocking if they don't provide one, to the point that I wouldn't trust that company with anything in the future and would likely file a chargeback to get the refund.

The fact that there are now dozens of services that exist to provide you with a burner CC number in order to sign up for these trials indicate that almost nobody actually wants to provide a credit card number for a trial. It's also just ridiculously user-hostile with very little proof that it results in higher customer activation compared to a trial that doesn't require a credit card.

Good luck!