'Sub-prime lenders' continue to be the worst offenders imposing multiple charges most of which are repetitive, unnecessary and excessive. For example some 'sub-prime lenders' can levy some or all of the following charges each month: unpaid direct debit fee £30, arrears fees £45, telemessage fee £25, questionnaire fee £75, referral to solicitors £50, repossession fee, £29.38, litigation management fee £115, and late payment fee £25.GLC is calling upon the regulator to consider requiring both 'sub-prime' and 'prime' lenders to undertake a review of their active mortgage accounts with a view to voluntarily reimbursing (by way of a credit to the consumer's mortgage account) all of their customers who have been charged unnecessary, unfair, repetitive or excessive charges. To some extent this process is currently happening for the mass misselling of Payment Protection Insurance by authorised firms and financial intermediaries.