I lost my account

I have registered and used Blynk from 5/2018. I also had to pay to use more features in the app. A long time I did not use Blynk. Now, I log in again and receive an unregistered email notification. I tried to re-register with the same email and received a new account. So I lost projects as well as money? In my inbox I got “Get started with Blynk” mail again, even though I received it last year.
I need an answer? Thank you.

Hi i am a kickstarter backer and I can not log in to my account too . It says there is no such account ?