You were trading illegally on a private account - that is why Ebay requested invoices from your suppliers for the brand new items you were selling.
They may hold your payment for up to 180 days but you should eventually get paid.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)