hi! i have the same question actually. I am from the province and yes I think it is confirmed that DHL is no longer the official courier of qatar embassy for authentication, visa stamping, etc. According to DHL, we should be processing it personally at qatar embassy.

I have been checking on this link for some time waiting for a reply from the qatar embassy official regarding the same question that we have.here is the link

http://embassy-finder.com/qatar_in_manila_philippines.

I think the same requirements will be needed like when it was through DHL.

Thanks!