Because I've finally got round to doing something and have realised I shredded most of my paperwork years ago, and most of the cards I had PPI on were closed nearly a decade ago, so I don't think it will be easy to obtain copies of the agreements I signed. I have all account numbers, thankfully, and a couple of stray statements, but no T&Cs or policy documents.
Is there any hope I could sort this out myself without a massive headache, or shoudl I a) use a company as some money back is better than none or b) give up?