you'll need all the statements via an SAR to the Original Creditor & ideally a copy of the Loan Agreement
you'll need to fill in a copy of the statint.xls spreadsheet HERE
you'll need to fill in the FOS Customer Questionnaire HERE
you'll need a covering letter HERE
all three go to whatever you are reclaiming PPI From..
that could be the original creditor or the underwriters of the PPI Insurance policy
this depends upon dates and other variables.