What "document" should i send to my bank

[simblend]

I earned my first 70€ and when I transfered from Payoneer to my bank account .I got a message from my bank account saying that I should prove them where the money come from .Anyone has any idea what kind of document should I send them ?

[imagination7413]

They told you to provide proof, but didn’t state what kind? I would recommend asking them what kind of documentation they need (emails, statements, screenshots, ect.)