Sign In with the Adobe ID, Email address and password, you used to buy the plan. Also if you haven't already download and install the Creative Cloud Desktop App. Then Sign in in that also, Gear icon in upper right hand corner, Preferences, General tab.
And after you get the creative cloud desktop application installed you will want to do your installations from that application. You have installed the stand-alone version, and that's why you're getting good expired notification.
Sorry I didn't read all of your post. If there is no Plan showing in the Plans and Products section when you sign in to the Adobe site and select Manage Account then for some reason your purchase didn't go through. Check your CC account to see if a charge was made by Adobe.
What country are you in? What country is your CC registered to. IIRC your CC has to be registered in the same country your are in when signing up for the plan. But there may be some exceptions to that.
Also LR CC 2015 and LR 6, the stand alone version, are exactly that same download. It is how you Sign In that makes them either the CC version or the 6 version.
Yeah, I have never used Lightroom 6. Just Lightroom CC. So I get a little confused about that.
Yep done that, then installed Desktop App & downloaded LR CC from the app
Adobe have taken the first £8.57 from my account so I know thats not an issue
Not sure about the country? I'm in the UK so kinda expected that it would have automatically sensed UK user (like most sites nowadays!) and as it showed prices in £'s when I purchased so can't see as thats the problem?
Are you sure you are logging into the Adobe website with the exact same email address and password you used to purchase the plan with?
The country stuff was just checking. There has been problems for some when trying to purchase a plan/product because they were in country X and the card they were trying to use was from country Y.
Go back to the Adobe website and Manage account. Then click on the Account gear icon and make sure you are using the exact same email address you used to purchase the plan with. You should of also gotten a Verification email that you had to click a link in to verify you are who you say you are and that email address you used is valid.
If you used some fictitious email address that will be a problem.
See troubleshooting steps 1 to 6 at this help link. Let us know if it helps:
If not, start an on-line chat with Adobe staff directly. Go to this link. Click the blue button; when signed-in with your Adobe ID; then click Chat 24/7
Went into Chat
They took over comp and found the problem was with the host file
deleted incorrect entries and now all working fine