No assignment of future earnings or wages shall be in any way binding upon the employer of the assignor until a copy of the assignment and account, which shall conform to the requirements stated in this section, has been delivered to the employer. The account shall be in writing and shall contain a statement of the balance due and of the sums of money received by the assignee, together with the date of every payment, and a statement showing whether the payment is a charge for making or securing the loan or otherwise.
R.I. Gen. Laws § 28-15-6