Horrible selection process. If you are applying for a position from Sansum career site directly and do not have any "Big Boss" reference whom you know, be rest assured that, they will directly reject your application, even before contacting you for initial screening process.
It does not matter, if you have CPC or any other related certificate or not, it does not matter you have experience or not. They simply do not bother to give you a chance.
Very very unprofessional approach with you, neither they respect you as an individual, its all about NEPOTISM, nothing else. Better, avoid this place at any cost for Medical Coding job.