Yes it’s worth repeating your reply as people who lived & worked in the UK but moved abroad during their working life should be aware that you don’t need to be in the UK to make additional voluntary class 2 NICS to make up any shortfall. You can also pay overseas voluntary class 2 UK NICs every year even while working abroad & paying into another countries Social Security & Pensions scheme. This being particularly important since Britain left the EU as the UK’s DWP will not count any years worked in another EU country ( only upto 31/12/2020 ) towards ticking any ( number of years minimum boxes ) to be eligible for a British Pension in the first place & of course its the same in other EU countries state pensions, where the number of years paid into the British NICs is only counted upto the end of 2020 or the 31/12/2020 to be exact.