If the seller wants to send you an item other than the one you have bought, ask them to cancel the sale.
Otherwise, on receipt, you will be able to return the item.
Better to request a cancellation now.
Message the seller and ask them to cancel the deal if they can't supply what you expect and want.
"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)
