Account deleted ?? help me

I had account in Viber using only my phone number, I stopped using Viber then deleted the app from my phone (it was like couple of months ago), recently a friend showed me when they searched my number it showed that I don't have an account (also showed that usal option of "invite them to Viber"), and now I am being accused of deleting my own account on purpose, now can my account be deleted if i did not use it for long time ? if so can i get back my old conversations ?
Note: until now i did not try to log with my phone number bc i am confused on what to do