Hey there, I'm currently banned from PayPal, and I actually went through what you did.
I filed an arbitration using a service called FairShake (https://fairshake.com/), and finally they decided to settle with me. They said they will give me my money, but I can no longer use any of their services including Venmo. I agreed and took the money.
Happy to answer any questions regarding my experience, feel free to telegram me @tdpae