I would not shout too loudly about that as it almost certainly amounts to a criminal offence of deception.
I prosecuted two bank mangers some years ago who enabled the transfer of funds to several accounts so that they could confirm that the account holders had sufficient money to be able to stand bail in a tax fraud brought by HM Inland Revenue. The funds were transferred back to the original accounts after the confirmation letters had been supplied by the managers.
Both managers were convicted.