Glad to know it about the refund. Thought I'd offer just to make sure you know we're not trying to give you the runaround. Your issues are pretty uncommon, but we'll definitely do what we can to figure out where the issue lies. It helps us to solve your problems so we don't run into them again.
I'm not sure what you mean by the admin panel. Is that the Joomla Admin panel, the "Google Chrome" login stuff, or something else? Either way though, I don't think any of those should conflict, but more clarity would help.
I don't think this has anything to do with your Facebook account. I think it's mainly a privacy setting, an addon for your browser, or some other mechanism on your computer/network that's causing issues. Since it seems to work in FF, that narrows it down to mainly Chrome. Did you/Can you check the settings in Chrome I mentioned above? Alternatively, can you try surfing in IE (or Safari) and see if the same issues are there or are resolved? Again, this all just helps narrow down the issue.
All of my testing, by the way, has been with Chrome on either Windows or a Mac.
Thanks,
Alex