Presenting Tryst with virtually incontrovertible evidence, and then having them do nothing, would say quite a bit about that site. I am sorry this has happened to you, as I can only imgine how maddening it must be to get ripped off, provide proof of same, and then have them not engage in any punitive action against the woman in question. That just makes matters so much more of a headache for you.
.
With all that said, I do have a few questions. When she asked you for an additional deposit, on top of the first one, did she say why? That would be a massive red flag to me, unless I requested the date be lengthend from my initial request, then, of course, there would be a certain logic to her request for more funds upfront. Did you give it to her?
.
Can you tell us the list of reasons they gave you for not taking any action against the provider?
.
Unfortunately, what you are saying is becoming more common with that site, in that the questions surrounding its legitimacy are growing, not shrinking. Once they started allowing woman to advertise there who have absolutely zero desire of ever meeting anyone in person i.e. the classic "OnlyFans girl", that is when I started losing faith in them. The benefiits of the site, to me, still outweigh the negatives but I dont like how things are trending over there, to be sure.

I reported an ad that was impersonating a provider. I gave them links to the actual provider’s Tryst ad. I gave them links to the actual provider’s TER reviews, which there were many. Literally, was using her name and pictures. Two months later I got an email. It claimed they take these things very seriously and asked that I submit proof. Instantly deleted the email and realized there is no point in wasting my time.

Can you clarify what happened? (Not blaming you, just trying to understand). Was it a situation where you sent the wrong amount so asked for the remainder? Did you do anything that would warrant her blocking you after? OR did she flip the script immediately, wanted more, then ghosted you? Context is important.

(If it’s the latter then ignore this) It’s possible Tryst reached out to her and she defended her case by stating her cancellation/reschedule policy. What were the list of reasons Tryst gave you to side with her? Sometimes suitors misunderstand what a deposit is. If you cancel, most cases providers don’t refund and it’s not a scam. Tryst agrees.  

Some of us have had beef with Tryst support for a while. They are aware of their issues.. they’ve addressed it a few times with no real action or timeline. You’re not the only frustrated one.

Don’t trust tryst unless you can cross reference from other sources.

I am very sorry that happened to you.

Why not pick a pro who has a solid foundation here on TER?

I hate tryst  
They banned me saying I wasn’t me ?????

So goes to show that a lot of legit providers aren’t in there.

I would suggest to stick to sites that have reviews