GUYS it's should be a two-way ticket. You can ask your relative to buy a dummy or they say "chocolate" ticket as if it is a 2-way ticket for presentation to Philippine Immigration.

Requirements for the authentication of Family Visit Visa to Qatar Embassy to be submitted to DHL:

1. Valid Passport original copy
2. Family Visit Visa printed in colored
3. Passport copy of sponsoring person (your relative)

I hope I answered your query.

Cheers!!!