Yep. Slow it down. If this is an experienced domme then she'll understand... unless her fetish is to break newbies, use them up, and throw them out, in which case, you don't want to be hers regardless. On the other hand, if she insists on these obviously manipulative rules, she is likely not experienced, is creating these rules by rote, having read them in some fictional fantasy, and is likely trying to secure you specifically due to your inexperience.

Or the worst scenario... she is a man (or boy trying to lose his own virginity) and is playing you presuming that when the truth is revealed, you'll be too entangled to walk away.

Austerus' advice is sound. I've never heard of a legitimate master or mistress who didn't get to know their submissive before offering to enslave them. Without negotiations. Without setting expectations and gaining agreement. It happens online but not in real life. You can be online and play along, but without a real contact with her, I would only obey to the extent that remains online. Real life encounters require real life scrutiny.

If you have not already done so, do not give out real life information that can be used to track you down. If you have, do not allow yourself to be isolated by this man who is claiming to be sent by your mistress. No one whom you only know online can seriously vouch for someone they've "sent" to you in real life. Even if she eventually sends you pictures. I can send you pictures too. Male, female, even alien, and could probably be convincing enough to make the unwary believe they're the real thing.

I'm not saying you're definitely being scammed. But I am saying that without a human contact, in the flesh, enslaving yourself to someone online is asking to be hurt.