Firm wrongly told grandchildren they had triggered a little-known tax rule
This would have drastically limited their ability to save up their own pensions
The cousins, aged in their late teens and early 20s, had inherited £1,300 each
The MPAA is meant to prevent people recycling pensions for tax advantage
How does the rule work? Find out below
Fidelity admits to error in this case: Read its full statement below