Have anyone here ever received something like this?

That is pretty wild. Explain why you have this money, because after all everyone knows it's not yours but really is someone else's loaned to you because of a specific reason.
Odd that my personal wallets never ask me questions like that. Go figure.
I'd recommend storing all wealth in something you control. Remember if you don't own your keys, you don't own bitcoins. Sounds like you own someone's fiat.