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 (25 of 45)
line 2 facebook.com, 381516314591991, DIRECT, c3e20eee3f780d68
→ sellers_json: HTML or login page instead of JSON
line 7 gamaigroup.com, 423056, RESELLER
→ sellers_json: HTML or login page instead of JSON
line 11 loopme.com, 11303, RESELLER, 6c8d5f95897a5a3b
→ sellers_json: HTTP 403
line 12 loopme.com, 11424, RESELLER, 6c8d5f95897a5a3b
→ sellers_json: HTTP 403
line 15 openx.com, 540785403, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 16 openx.com, 559798512, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 41 vungle.com, 6a25a5b6a3e2e589b0b4a855, DIRECT, c107d686becd2d77
→ sellers_json: HTTP 403
line 56 admixer.co.kr,1610,RESELLER
→ sellers_json: HTML or login page instead of JSON
line 57 admixer.co.kr,1654,RESELLER
→ sellers_json: HTML or login page instead of JSON
line 67 appnexus.com,11470,RESELLER
→ sellers_json: HTTP 403
line 68 appnexus.com,11924,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 69 appnexus.com,12700,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 70 appnexus.com,13293,RESELLER
→ sellers_json: HTTP 403
line 71 appnexus.com,13297,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 72 appnexus.com,15349,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 73 appnexus.com,15426,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 74 appnexus.com,15816,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 75 appnexus.com,17417,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 76 appnexus.com,4052,RESELLER
→ sellers_json: HTTP 403
line 77 appnexus.com,7597,RESELLER,f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 115 eskimi.com,2020001211,RESELLER
→ sellers_json: HTTP 403
line 116 freewheel.tv,534608-r-523319,RESELLER
→ sellers_json: HTTP 403
line 151 loopme.com,10999,RESELLER,6c8d5f95897a5a3b
→ sellers_json: HTTP 403
line 152 loopme.com,11362,RESELLER,6c8d5f95897a5a3b
→ sellers_json: HTTP 403
line 153 loopme.com,11414,RESELLER,6c8d5f95897a5a3b
→ sellers_json: HTTP 403