Nope dx, I've stayed at the same address for 7+ years.
I just checked with clearscore,
the report shows a search performed by "TDX Group (for Vodafone)" In February 2016,
which is around the time i would have went 120+ overdue & into default territory.
I have never received any contact from them or Vodafone since 2015 though
(except when I called vf last year and got a very cryptic response after being passed from dept. to dept.
and wasting the better part of a couple hours on the phone, but that's by-the-by).
I'd be happy to clear it to avoid a potential defaul