It looks as if you can change your email address within Profile.
I think all you do is put in your new email address, replacing the current one. (There's a reference to entering your password again in order to change email).
Ok not it hasn't fixed it....
Emails came through to the new address but then when I tried to log into my profile it didn't like my new email only my old one and now it says it's re set to the old one, it claims the new one is already allocated to a user I'm not very good at all this
I changed my email address a good while ago and ive had no problems logging in.
I went to Profile
Changed email address
Typed in password
Then scrolled down to the bottom of the page and clicked Submit.
Nothing to do with emails, but I've just had a butchers at Phipplbert's site (fermetramunta) and it's absolutely gorgeous. The views, the birds and animals photos are delightful. Click on his site - well worth it.
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Hmmm it didn't work for me. I'll see if Kate can do it, otherwise I'll try again.
P.s. Thanks Robert Ferrieux for the comments money on its way I do have a separate photography website but it's now more of an expensive hobby than anything else