Hello everyone
About 10 years ago, I bought 500 bitcoins, of which I used only 10, meaning that 490 bitcoins remained.
There's no one who will help you this out only yourself. Try to solve everything and don't let to handle this problem to other people, they may be run away once they recovered. If this is a centralized wallet platform, bye-bye to your bitcoin, and it may be shut down.
It looks like the odds of this fight were on mine, please update us regularly for the excellent bitcoin amount.