A lot of people who are processing their ppi refund were sold ppi policies by the banks and other financial firms were worthless and offered the person being insured no protection whatsoever like if you were a part time worker, retired or on a temporary contract, then your ppi policy would probably never pay out making it totally unsuitable.  It may also have been unnecessary if you had sick pay cover through your job or had other insurance provisions in place.

Also, ppi policies offered by the banks were often incredibly expensive, reaching up to four times the market rate.  These inflated prices saw monthly repayments rise considerably.  In some cases, the ppi payments were as much as the loan itself and usually the total cost was added to the loan balance and subject to interest which made the overall repayments totally unaffordable.

This has led to the Office of Fair Trading to get involved and have raised their own concerns that many people who took out ppi policies in the past may have been a victim of mis-sold ppi and therefore could be owed thousands of pounds in compensation once they make their ppi claims against their bank or lender.  They way the financial firms went about selling ppi policies has been deemed unethical and has received widespread criticism which resulted in regulation charges allowing people to file for mis-sold ppi claims to receive compensation or to get their money back.