This company has reported a collection account to ...

This company has reported a collection account to my husbands credit report. They reported the same amount 3 times in the same month. I have tried to call them but it transfers me to a voicemail
I know we never pay late and we are 100% sure we don't owe any money to nobody because we are excelent at paying everything on time.
There's no account number and it doesn't say who we owe it. Looking at all these reviews it's obvious that they a fraud. A lot of us should get together and file a huge lawsuit against them.