Almost on a weekly basis before the said conference, officers alternately followed up via a long distance phone call & check of the DepEd website for the endorsement to no avail. We just consoled ourselves before the start of the conference that we have the CHED and CSC endorsement anyway.
Our lesson learned from that application are as follows:
1) sending the application for endorsement of the conference via "snail mail" works.
As agreed, I went to CHED Head Office at Ortigas only to be told by the lady security guard that the office I need to visit for the endorsement transferred to the new CHED building at UP Diliman yesterday. Before I went to CHED, I was earlier at UP-SLIS and nobody informed me that CHED had a new office building within the campus. I decided to follow up first at DepEd before returning to UP Diliman at the new CHED building.
3) file (or mail) the request for endorsement at least 3-4 months before the activity.
This will allow reasonable time for the concern government agencies to act on the application and enough time for the association to include in the invitation letters the endorsement(s).