Trying to escape from blockchain.com NIGHTMARE

The biggest mistake of my life was to send BTC to my blockchain.c0m trading wallet. Then, the next day I received an email from them asking for my occupation/proof of residence/etc and all my funds within that platform were ALL LOCKED.

The first week went "good" with their support communication because I was getting replies/updates every day. Their last request was more info about my cryptocurrency purchases, my coinbase transaction statement specifically. And so I sent it to them multiple times in many forms (pdf/csv) but it felt like they were intentionally ignoring it. They never replied back once I gave them my coinbase transaction history and I was then getting only automated emails from them saying that they did not hear from me (?!?!). I continued replying to them sending them AGAIN the same files and still no response but only automated replies that the issue seem to be resolved when IT'S NOT. Something tells me they only accept jpeg/png files? Is that why they ignored my responses?

What I'm asking is whether someone has been in the same situation before and which documents exactly you gave them and if it worked out. And also, what do you recommend me to do because 1/3 of my total portfolio is stuck in that hellhole called blockchain.c0m

Any help/insight would be greatly appreciated because I can't sleep for the past 2 weeks...