In the event you know your password but simply wish to change it, click on Login/Register in the top right corner of the page, and login to the website.

On the page which opens, click on “edit your password and account details” in the sentence:
From your account dashboard you can view your recent orders, manage your shipping and billing addresses, and edit your password and account details.or simply CLICK HERE

Now you will be able to change either your email address or your password or both.