Another monthly payment question...

I made my 12th payment on my Sonar Platinum monthly plan in January and received and installed the 2017.01 update, so now I just want to make sure my understanding is correct.
 
1. I will have permanent access to this version (Sonar Platinum 2017.01) if I do not choose to renew my monthly payment plan.
2. If I renew now, I'll continue receiving monthly updates and after twelve payments I'll again have permanent access to the last update I receive. If for some reason I'm unable to make 12 payments, I'll still have permanent access to the version I have now (Sonar Platinum 2017.01)
3. If I don't renew now, but choose to do so in the future, I'll receive the current newest update at that time and the same will apply as in the point above with respect to making 12 payments and continued permanent access to my current 2017.01 version regardless.
 
One question I have is if I don't have a currently active monthly payment plan, am I still able to access downloads of my current version in the future should I need to reinstall? Also, what if in the near future some critical bug in the last version I have should emerge? Is there any method by which users whose payment plan has expired can access a bug fix in that situation? 2017.01 is running apparently very stably and without problems, but you never know (see recent apparently Windows update related crashes).
 
Thanks for any replies...

scook
The monthly payment plan will continue until you stop it. The monthly payment plan does not automatically terminate after 12 months.

Ah, this I did not know.  Thanks for the info.