How to get a client banned on Upwork as a freelancer?

Question

Upwork

I ran into a very bad client, just awful. As a result, I'm now on my 2nd day working for him for free because I have 4 contracts with him and he threatens to refund everything and give bad reviews. This will completely destroy the reputation of my account, straight to the nines and you can forget about working from that account. I have already written to the upwork support and provided proofs that he is threatening, but he is still upworking. I also gave proofs like him to excuses to work outside of upwork, I think then I would have been left without money at all. However, if he continues, I will be forced to open a ticket and spend more time discussing who is right and who is wrong. To me as a freelancer, this is PPC. After all, according to the rules of upwork, you can’t create a second account, and the client doesn’t really care, he can spawn them as much as he wants. I already lost a turnip because of him, since in one contract he delivered, such as to prove that he could deliver a bad review. It seemed that with my rate there were fewer scammers, and I also chose clients with turnips from 4.5+ stars, payment verification and hiring in the past ....
Everything is as usual, at first everything is fine, then it starts, after the task has been done, you see, it’s like this, and it’s not like that, but here let’s redo it, of course for free, because it’s my fault and not him. It turned out that he does not understand what he wants and how he wants, after the completion of the task, new edits to the task began to appear. Like "let's redo the button, but I won't pay for it, you should know that I'll say that the button should be blue and not green." This is an easy example, in general, he asked to develop a whole module on a site for managing static content, in 2 hours, given that the project is 2 years old and there are 0 tests in it, complete noodles in the code due to the frequent change of developers every month, several. I'm almost finished, but I feel sorry for 2 days + a week and several contracts that have already been made with him. Because it's hard to explain You have to feel this, in the event of a showdown, I lose even more reputation, money and time, I would like it to be simply banned. And in fact, I can’t throw a bad review at him, because this will transfer the disassembly to the ticket, etc.
Who faced? How did they decide? What happened? Can a client be banned? How to achieve this?

Answer 1

Why strive for this? Keep working, you've gained experience.

Answer 2

The correct answer is already in the comments:
Never follow the terrorists. Fightback. Threat yourself. Write to admins. Find out the upwork number - take it and call, explain the situation.

Answer 3

I've been working for him for free for 2 days now.

It's not a problem. There are situations when you have to work for free for two months in order to maintain your reputation. And not necessarily at the whim of the customer (you need to clearly work according to the TOR in a fixed price), rather because of an underestimation of the TK item, or a bug in the library.
Well, a lesson to you for the future, do not open extra contracts with one customer.