I also do not believe Joey De Venecia, son of Congressman Jose De Venecia (former House Speaker). He may just be a disgruntled bidder who lost in bagging the project.
Joey being a son of a government official should not have been involved with any government project in the first place. Such an action is prohibited by the Philippines’ anti-corruption laws.
Disclaimer: I am not in anyway connected or receiving payment from the current administration. This is my opinion and everyone is entitled to one.