Accounts system is *****ed

I am an accounts lady for a small business. I handle the personal finance administration for the owner. The owner had an account with CHUBB Security years ago. They have been taking the debit orders off every month but it has gone off 3 times. Which according the agreement is correct, However the invoices only has one line item for one of the amounts going off the bank account. I have been trying for 3 months to get a statement from CHUBB, Accounts department Johann Du Toit. Bare in time this has been queried with Chubb before i started in total it has been a year that this has been going on.

Basically they are unable to provide us with a statement or any sort of documents stating the amounts that have been invoiced to the customer. We have done a recon on our side and in order for us to resolve they have to provide us with a statement or something.

We keep getting the same excuse, they have to pull the information from Archives, I have worked in accounts for years and i know that this is not right. It has a negative impact on the clients credit record and they just not trying to resolve it.

This is unfair. What sort of legal assistance can we look for? As we are done trying to resolve it with CHUBB Accounts. We have given them chances and we have received nothing;