PPI cases can either close within three weeks, but some cases take 18 months. If you have no prior preparations done and claiming with the help of the Claim Management Companies, this is what happens.Day 1: Once you have decided to make a claim with the help of Claim Management Companies, they will need the following details:Your lenderu2019s nameAccount number for the loan or credit cardSigned Letter of Authority (LOA)Day 1: You post the LOA, which gives the Claim companies the authority to talk to your lender on behalf of you and handle your claim.Day 4: You send back the LOADay 6: If you do not have the required paperwork that proves you were mis-sold the PPI policy, you claim companies can request your lender to send it to them on your behalf. The lender has 40 days to reply to them.Day 46 (7 weeks): Once the copy of the original loan agreement is acquired, the claim company can file a complaint with your lender. For this purpose, the lender has 8 weeks to reply to it. With the current increasing amount of complaints, it might take up to 10 weeks for your lender to revert.Day 116 (4 months): Your lender might reply with either of the following on receiving your complaint:If you do not have PPI then this is the end of the roadIf you are offered a payment then you are happy with, you can expect the cheque between 3 to 8 weeks.If you have PPI and the lender refuses to give the refund, the complaint goes to the Financial Ombudsman Service. This stage can further take up to 18 months.