For the OP....
1. Have you dispatched ( definitions seem to vary)?
2. If dispatching iaw with your DDG then what does that say?
Our's has a ten day limitation, plus a statement saying dispatch not allowed if "procedures require it's use" so it might be time to dive into the books and look up the rules for each en-route FIR/State of overflight..
. and for us there's a ban on dispatching from a main Maintenance base into or over those parts of Africa that require use of the In-Flight Broadcast procedure.....