Yes, I have a copy of my previous passport main page with passport number, expiry, photo etc.
Sorry I was replying from my phone before. I got the dates mixed up, can I clarify (I am not sure if this will affect your advise).
I am on a passport which is only issued for 5 years (New Zealand).
Thus I have two passports but not the third one (oldest one) to cover my time in the UK.
So my two passports in my possession are:
12 Jan 2010 to 12 Jan 2015 (now expired)
8 April 14 to 8 April 2019 (current one)
So I do have 5 years of travel history between these two passports which I believe is needed for the application. So I will just need to prove the original visa stamp existed as my residence permit started on 3 October 2011 (when I renewed)?
Could you advise if this changes your advise above?
Sorry about this.