As you can see from my username, I deal with this sort of thing all the time. You could either pay off [redeem] the exisiting mortgage and stand in the place of the mortgagee by securing what you have paid with a first legal charge or redeem the mortgage and enter into a declaration of trust...
I ordered 5 tickets this am and even though I live in mid-wales they are posting them to me by special delivery for which I paid £10. Just ring up and ask- I am sure it can be done. they initially told me that I had to collect but when I "insisted" they could arrange special delivery the Albion...