Believe me. I know the feeling. I didn't get any help at all and support just kept closing my tickets. I got lucky with mine. I don't know if I'll get lucky again if I ever revisit it, but I'm thankful to have finished the game at least.
If you've tried what I've done (I know you said you've tried a lot of stuff), then... I can offer you no other insight.
I know mate, it's ok. Looks to me like an account issue with DRM or something.
I installed Origin on another machine (never touched by this platform before 🙂, I can vouch for that) with XP SP3, tried to run the games but no cookie. ME1 will not start (forgot to say I have a problem with that one too :D - simply won't start and no CD-key shows in the Game properties) and ME2 will not start either, no matter which I install ("old" ME2 - the one I bought or the "new" ME2 - the one they put in my account). With both installed, same "Invalid License ... ".
Nothing I can further do but wait and hope ... or go berserk and start spamming the internetz !!! :D
Well, I've got mixed feelings after I find this topic. On the one hand, it's easier when you're not alone with your problem, on the other hand - EA still did nothing about it.
I'll tell more, guy's, - I've got three copies of ME2 and only one of them launched, after some manipulations. Digital edition version never worked, but gave me problem with the DLC "Collector gear" which considered by Cerberus network as unregistered in my account. I wrote two messages to help.ea but still waiting for response.
Sorry for broken English guy's, it isn't my first language.
