A postal order, either crossed or open is only valid for a period of? by Sunday | Jul 24 | Commerce WAEC | 0 comments A. 12 months B. 10 months C. 8 months D. 6 months E. 5 months Correct Answer: Option D – 6 months Users Also Read These:A crossed postal order is?Which of the following are elements of a valid contract?A postal service that allows a company's customers…A yellow maize is crossed with a white maize and the…The fees charged on the postal order by the post office is?