Where has my licience gone

I requested and got a 60 day evaluation a couple of days ago but had to re-install Dopus on a different drive and now it tells me I have 30 days :cry:
Read the FAQ but I'm not up to the standard required for a possible solution so I requested duplicate online and the code it sent me was different to the one I was given for the 60 days.
How can I get my 60 days back again?

Just a different drive or a completely different computer (or second installation of Windows, etc.)?

Just changing the install location shouldn't matter as long as it's still the same machine and Windows install.

What does the code you were sent give you?

It should be the same code you already had, i.e. if you had 55 days remaining on your 60-day trial licence and you asked the website to send you the licence again, you should still have 55 days remaining.

Same system different drive - D to C.
Code given for 60 days

Did you install the evaluation certificate again after reinstalling Opus?