Bilkish — Unauthorized credit charges

I was working in the Kingdom of Bahrain during the period[protected]. During the time of civil riots that was happening in Bahrain, I lost my job during February'11 and left the country after my visa was cancelled. I had paid all my dues before I left because as per rule, I cannot leave the country. Now after in Feb 2017, these people from Bilkish gives me a call after 7 years stating that I have some due amount and now has sent me 2 statements that does not make any sense in the transactions.

I want to know one thing - Where were they for the past 7 years and now they realised that I have dues.

Un-necessary harrasment going to my old parents in home town etc.

How do I deal with this.