My LinkedIn Account Has Been Suspended Without Explanation

Hello, After changing my account password to a very strong one, about 2 hours later, my account was temporarily restricted, presumably due to someone attempting to access it without authorization (I assume this based on the absence of any explanation from LinkedIn). I have been waiting for days. I submitted a photo of my ID card, but there has been no response. I contacted LinkedIn Support via Twitter, but there was no reply. I created a backup account and submitted a support card, but that backup account was also restricted. I hadn't even sent a connection request to anyone for weeks. I don't understand why an account that has been active for years would be restricted. I declare that I have not violated LinkedIn policies and that I highly value LinkedIn policies. ❗ All my academic work from the past 3 years, without any backup, was on my LinkedIn account. I had important messages about job interviews and projects in my account. I used LinkedIn Premium for a long time as well. I find it difficult to accept that they are such an unresponsive platform. I want to regain access to my LinkedIn account. When I researched online, I saw that many people did not receive a response from LinkedIn Support and couldn't access their "temporarily restricted" accounts for months. I put a lot of effort into building this network on the LinkedIn platform. I participated in numerous academic studies; there are so many that I don't think I can write an up-to-date and complete CV without my LinkedIn account. Please urgently restore access to my account or send me an information email regarding the situation as LinkedIn Customer Service. It doesn't befit such a large platform to behave unprofessionally. There isn't even a customer service number to contact. I have been waiting for days; please promptly resolve my issue. Thank you for your time.