No response to e-mails

I have e-mailed Sage on 2 occasions to try and resolve an issue. My late wife had an accounting practise and used Partner for her clients. When she passed away last year a closed down her business and did not renew the yearly subscription. We were running on version 12 and did not upgrade 14 as there was no need to do so. I have had to re-install 12 as a result of PC problems, but it does not want to open giving me a run time error. I have tried phoning as well, but as I am not a \subscriber"there seems to be no options for me to follow. I would like to get 12 up and running again..... who can help me or is there a third party I can contact."""