Fidelity Express review: Money order (payment not received)

June 30th this year another incident with Fidelity Express

$40.00 money order was purchased @ the Shell Gas Station located at 9103 Jensen Dr. in Houston,tx. filled out and mailed to Capital One PO Box in RichmondV.A [protected].Payment was due July 20th. Today's date is the 21st

and payment has not been posted to my account. I am requesting that this matter be investigated as to the whereabouts of money order # [protected]