I?m afraid it?s quite normal. All the mods here are volunteers, we are not paid to do this. Mods have lives of their own offline: jobs, familys etc. So they are not here 24/7. And concidering the fact that the forum has been REALLY slow/offline for the past days, It?s no wonder you haven?t had a reply yet.
I don?t know what you PM?d a mod about, but if it?s about a problem at the downline builder, they won?t reply to PM?s , you have to post a complaint and they WILL take it from there. Patience is needed...