Post Box Locked Even Though I Renew Online

This happens each year! I pay online to renew my postbox because it's supposed to be more convenient. But, my post box always gets locked because no-one knows i've paid!!! Isn't there a system in place within your company where you actually can check who has paid online?!!<br> Please sort it out quickly, so that I can get my mail.<br> If you haven't got a system in place to communication to your staff who has renewed their post box via the virtual post office, maybe you could allow me to come in and put a system in place? My fees are very competitive!<br>