The ad system doesn't publish a readable sellers.json, so nobody can verify these lines. That's the ad system's gap, not the app's, so no points are deducted.
Evidence (22)
line 8 vungle.com,685efaf2892f9d0011d7b87f,DIRECT,c107d686becd2d77
→ sellers_json: HTTP 403
line 9 loopme.com,10999,RESELLER,6c8d5f95897a5a3b
→ sellers_json: HTTP 403
line 25 openx.com,540280728,RESELLER,6a698e2ec38604c6
→ sellers_json: HTTP 403
line 37 facebook.com, 10152966620410921, DIRECT, c3e20eee3f780d68
→ sellers_json: HTML or login page instead of JSON
line 57 openx.com, 564223646, DIRECT, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 61 openx.com, 541070806, DIRECT, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 62 openx.com, 559614882, DIRECT, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 76 ogury.com, 5075e6b5-06ab-4c7e-894e-a2510be7f04e, RESELLER #teal
→ sellers_json: HTTP 403
line 77 openx.com, 560937568, RESELLER, 6a698e2ec38604c6 #teal
→ sellers_json: HTTP 403
line 85 openx.com, 537149464, DIRECT, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 100 startapp.com, 139375432, DIRECT
→ sellers_json: HTTP 404
line 101 openx.com, 559912325, RESELLER, 6a698e2ec38604c6 #start.io
→ sellers_json: HTTP 403
line 103 rhythmone.com, 3539326754, DIRECT, a670c89d4a324e47
→ sellers_json: HTTP 403
line 107 loopme.com, 2896, RESELLER, 6c8d5f95897a5a3b #Smaato
→ sellers_json: HTTP 403
line 108 ogury.com, 1a65f990-b108-4b60-9b21-6185225b1fd9, DIRECT
→ sellers_json: HTTP 403
line 109 appnexus.com, 8173, RESELLER, f5ab79cb980f11d1 #Kargo
→ sellers_json: HTTP 403
line 119 openx.com, 541056459, RESELLER, 6a698e2ec38604c6 #mobilefuse
→ sellers_json: HTTP 403
line 130 openx.com, 539154393, RESELLER
→ sellers_json: HTTP 403
line 137 facebook.com, 10152627269236356, RESELLER, c3e20eee3f780d68
→ sellers_json: HTML or login page instead of JSON
line 141 freewheel.tv, 536174-r-523319, RESELLER
→ sellers_json: HTTP 403
line 142 freewheel.tv, 536174-r-524565, RESELLER
→ sellers_json: HTTP 403
line 148 appnexus.com, 9517, RESELLER
→ sellers_json: HTTP 403