When a financial product, such as a pension, is mis-sold to you, you must bring a claim against a financial adviser within six years of being sold the product, or within three years of learning it was mis-sold. If your claim involves a pension scheme set up by your employer, or by yourself, you should also lodge your complaint with the Pensions Ombudsman within three years of when the event happened or within three years from when you first knew about it.