A "misc payment RBC" refers to a miscellaneous payment made by RBC for unknown purposes. It is unclear what the payment is for without additional information. However, "miscellaneous payments" can refer to payments made to individuals who are not employees or students of a particular organization, such as contest awards or recognition awards. It is also possible that the payment is related to payroll contributions, as suggested by one of the search results. Without more information, it is difficult to determine the exact nature of the payment.