Credit Report Arrears?

[Dewdropdeb]

Got a copy of credit report recently. It has an old loan on it that we renegotiated payments on. We never missed or were late with a payment. Only thing that changed was bank agreed to lower payments after renegotiation. On our credit reports it is showing this as arrears and even though the loan was paid off 4 years ago and we never missed a payment we can't get credit now because they've marked it as our payments being in arrears.

Do we have any recourse here? Surely since they agreed to renegotiating they can't do this? Or if they can they should make that crystal clear in advance?

Anyone else run into this?

Thanks!