You just answered your own question. What's wrong here?
Where I participated with both accounts? If I joined Ariva Twitter campaign with both accounts then you can call me cheater.
With 'Rana590' I joined signature and If I wanted then it was possible to join Twitter campaign also with 'Rana590'. I didn't use it on Twitter campaign because I didn't want to participate in social media campaign this this account.
I used separate account in separate campaign. That's indicate no intention to get double payment. My intention is solid.
It would be more correct and honest to participate with one account on Twitter, and in the subscription, and in all the others. In your case, this is a scam. Participation of multi-accounts