License key didn't validate into Registered SIP devices page by using reseller login

Steps :- 

1. Login as admin.
2. go to Get addon > community.
3. install switch monitoring commercial addon.
4. Now login as admin.
5. go to Accounts > Role & permission.
6. give permission regarding switch menus.
7. Now login as Reseller. 
8. go to Switch > Registered SIP devices.
9. Enter valid License Key and click on  VALIDATE LICENSE button and observe.

Actual result :-  It displaying error as permission denied 

Expected result :-  I should be validate successfully.

See Videos :-