It's possible your issues arise from your account being linked to your Facebook.

I have unlinked your account from Facebook; please try hard-refreshing your browser to get rid of any latent cookies, and try again. If that's doesn't work we'll see what else can be done.

If unlinking FB does not work, it will not be an issue with your account, so deleting/changing it will not do anything for you. It still sounds like a browser issue to me...