under a cover letter(A registration statement must be submitted under a cover letter to the Chief Executive Officer for the attention of the Registration and Licensing Division. Alexander Demidov)
remittance copy of an invoice(A remittance letter is a document sent by a customer, which is often a financial institution or another type of firm, to a creditor or supplier along with payment to briefly explain what the payment is for so that the customer's account will be credited properly. A remittance letter can also be referred to as a remittance copy of the invoice since it typically contains much of the same information as an invoice, such as the customer's account number and invoice number. investopedia.comLadaP)
