cbpaidsubsbot not working in subscription plan content

OK, got that thanks. The only thing is that by the way it's worded it makes it seem as though the plan underneath is an upgrade to the plan above, what I really need is a subscribe button on each plan (rather than at the bottom of all). If this is not possible then where do I change the 'Your current subscription upgrade possibility:' & 'Upgrade' button text. I could not find it in the 'Languages: Overrides' in joomla.

Subscriptions while logged in are always Upgrades. If the 2nd plan is marked Exclusive then it is an upgrade. If there's no checkboxes or radios to select I'm pretty sure it shouldn't display that at all though. At any rate the button text is just "Upgrade" and can be translated as follows.

"Upgrade" => "Buy"

Can you please elaborate more on this...

"Upgrade" => "Buy"

Do I...
-- create an override in Extensions > Language(s) > Overrides (I've tried this, it doesn't work)
-- do i edit a language file in the components/com_comprofiles folder?

It's a CB language string so you need to translate it through CB language files. See the below for language usage information.

www.joomlapolis.com/localization

The easiest approach is probably a language override plugin show below.

www.joomlapolis.com/forum/6-news-and-publicity/227556-cb-language-override-video-tutorial-resources

Please please please tell me if there is a way to add multiple plans.

e.g. [cbsubs:if plan="1,5,8,10" status="A"]ACTIVE[/cbsubs:if]

but this does not work.

No, that's not how you add multiple plan conditions. See the news article below where it has an example of multiple plans condition.

www.joomlapolis.com/news/18550-cbsubs-gpl-4-1-with-timed-content-taxes-inclusive-price-display-and-plan-substitutions-usable-anywhere

Example as follows.

[cbsubs:if plan="1" status="A" or plan="5" status="A"]ACTIVE[/cbsubs:if]

You can use "and" or "or" for multiple plans conditions.