Long shot againt Game publisher company

Hello,

I am wondering what rights I have as an EU citizen within an online game published by European publisher.

Context: In 2021 my MMORPG accounts within that platform stopped working and they were showing an unusual error. I tried connecting multiple times, multiple devices, and still no progress.

I raised a ticket and they didn't have an answer to this because my MMORPG accounts were not showing to be banned, the tickets got escalated up and up until it reached the publishers of the game, they just said that I broke the rules and refused to comment anything further and closed the ticket, so no info on what rule i broke, just that my account is banned and i do not have the right to know why and that they have all the proof.

That unusual error apparently affected a significant amount of players within the game and the resolution was to just wait (minutes-hours), while I have tried connecting through multiple means because I was in the first wave hit by that error and had no knowledge.

In this specific MMORPG I have bought in game content (through official shop) worth ~1,000 euro that was lost with the entire platform, together with very valuable items that have been developed in the span of at least 5 years. I noticed that not only my Platform account got banned, but my access to their Official Discord server was also banned on IP.

I am 100% sure that nobody else accessed that game acount / email /discord. I was not part in any suspicious or illegal activity on Discord and that I played the game fully within its rules as I had over 10 years experience on that game without any warning.

I still have access the all the tickets and the way it was responded to me, considering this happened in 2021 can I take some legal actions and do I have a chance for anything? If the company is based in Germany and I am in a different EU state do I have to start this through a lawyer in Germany?

Thanks!