Unable to login after phone formattin

Android products
1

Hi,
I'm unable to login the mobile app after formatting the phone. I get a message that 'you don't have multi device plan…', while I'm using the same phone after factory format. 
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3

Hi, Anwar

I request you to click on the link below and submit the request to our AVG mobile team.
Contact AVG Support - AVG Phone Number, and Chat Support (https://support.avg.com/support_contact_form?l=en&retUrl=support_Android_AVG_Antivirus)
Our team will contact you via email.

2

Hi, Anwar

I request you to click on the link below and submit the request to our AVG mobile team.
https://support.avg.com/support_contact_form?l=en&retUrl=support_Android_AVG_Antivirus (https://support.avg.com/support_contact_form?l=en&retUrl=support_Android_AVG_Antivirus)
Our team will contact you via email.