Ms Pomfret explained: "The UK state pension that we receive is determined by our national insurance record, and you need 35 years of contributions to be able to qualify to get the full state pension.
You need 35 years' worth of National Insurance contributions to enjoy the full new state pension, with 10 years the minimum amount required.
A BBC finance expert says Brits have a two-month window to make a quick switch which could net them an annual £329 boost for life once they hit state pension age.
So you can see just by paying in £824, you get that paid back within 2.5 years of receiving the state pension, and over a typical 20-year retirement, you can make £5,750 pounds back.".
Currently, you have the option to buy missing National Insurance years dating back to 2006, with a top-up for a missed qualifying year setting you back £824.