It allocated my NI number to a stranger who has died, and will not process my pension top-up request as a result

HM Revenue and Customs allocated my national insurance (NI) number to a stranger who has since died. It therefore now insists that I am dead and so will not process my pension top-up request.

I’ve had this number since 1991 when I moved to the UK for six years to work.

In 2015 I again took a job in the UK. At that point HMRC told me it couldn’t find my NI number on its system and insisted on issuing me with a temporary one.

I’ve been trying on and off since 2015 to get my original number back and have spent hours on hold to HMRC. I’ve sent letters and visited the HMRC offices, to no avail. I was recently told I might have to wait 86 weeks for a response.