Exposing the injustices of a company

I worked for a debt collection agency in Qatar which dealt with defaulted Vodafone Qatar customers, my job was to collect money by calling them, my management was forcing me and everyone in the agency to abuse, threat and blackmail customers. I refused to do that hence the agency is terminating my contract and sending me back to my country, I have recorded some of these abuses made on my phone and if I send this to Vodafone UK, the company will lose their business, eventually close and lot of people will lose their jobs. Would it be right Islamically for me to do this as they are involved in illegal work or do I have to just forgive them and move on? Please shed some light this matter please.