The entire and up-to-date information related to the UK pensions can be requested from the UK pension insurance body below and can be found on the website of this UK organ.
DWP - Old Age Pensions
address: WV98 1LW Wolverhampton The Pension Service 11, Mail Handling Site A
website: https://www.gov.uk/international-pension-centre
The Hungarian pension insurance bodies can provide information exclusively about the Hungarian pensions.