What details do i need to give to my friend so they can transfer money from the usa to the uk?

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I asked my own bank and they told me to just give out my account number and the Iban number but it has now been two days since the transaction and I haven't received anything. Also if my friend is charged heavily for this what can we do because in my opinion my bank is liable for this mess.

What details do i need to give to my friend so they can transfer money from the usa to the uk?