I may be new to freelancer.com but am not new to designing logos. I recently won one of the biggest logo contests hosted on this website ($990). My design was chosen as the winner from amongst 850 other designs (check the feedback left by the contest holder on my profile). The contest lasted a month. Many designers who have bid for your project submitted their designs there. Their designs were either rejected or received a low rating.
I admit that many of the designers here have more reviews than me. But, they havnt won any contests which actually prove their mettel, their completion rate is not 100% even after years of working on this website.
I generally stick to the brief provided by clients and provide quality designs in any requested format (png,svg,pdf,Ai etc). Please have a look at my profile if you may. The feedbacks will hopefully clear any doubts you may have.
Looking forward to working with you.