Help dealing with Selene Finance

[Dan Levy]

My loan was transferred to Selene Finance and it's a nightmare ever since.
I have many different loans with various lenders, millions paid with no problem, but with Selene it just doesn't work.
Selene has misallocated funds and sent me letters that I owe them, but every time I call in they say “oh we see the problem and will fix it” only to have to call again and explain the whole fiasco and them tell me that they will check.
2 times we agreed on the sum I owe, I paid it in full the same day, only to have it returned to me a few days later, and after calling them again, they said that they did the calculation wrong.

I'm on daily calls with them for months now, nothing is solved, and they keep charging me penalties for not paying in time, payments they refuse to receive and return although sent after their request.

After hundreds of hours over the phone, I think my only solution is to take a lawyer to help me.
Any recommendation for a good lawyer who can help me with that?
Any other people that were hurt by Selene and can share if and how they managed to solve the problem?

Thanks,
Danny