BOS/Halifax They Can't Find Loan Information

Hello everyone,

I sent the Halifax/Bank of Scotland a request to check if I had any PPI for a mortgage and loan I had with The Bank of Scotland. They informed me that I did not have PPI on the mortgage and they could not find the loan and would not be taking it any further unless I could provide any additional information. I do not have the loan number but it was paid by standing order out of my current account (the same one which I currently have). I have statements showing the standing order being taken out of my account on a set date. I thought they would just have been able to look back and identify the loan through my existing bank account. I paid the remainder of the loan off in 2005, so maybe this is too far back? I am not sure how to proceed, or of I can proceed any further. The loan was taken out at a branch. Is there any point in sending a SAR or alternatively letter to the branch where I took the loan out. This is the only time I have looked at PPI and am not very experienced. If anyone has any suggestions or recommendations (even if this is just to let it go) it would be greatly appreciated.