Thank you for very clear answer and direction krab.
In this case, I've gone through details of this new vendor "Knowledger" and found that the service is more focused to the SI/IT group,
while the PSI is specialize in the Engineering & Industry project.
So, I validate to have 2 Vendors for PMP training, with the comment that, "Knowlewdger" is more focused on IT Projects.
and the fact that the training fee is already lower than the one from PSI.