Poor Document and Account Management

I have an overdue account that Norman Bissett & Associates Group is trying to collect on.

They keep sending me a statement that is encrypted with some account number that I don't have.

I keep asking them for the account number, and they seem to be unable to send it to me.

I have made numerous requests for this piece of information to be emailed to me with no avail.

How am I supposed to be able to open the account document and statement in order to review things and make a payment when all of the information I need to make a payment is in an encrypted document to which I do not have the password????

This is very furstrating