A good way to fix this quick, would be to simply create a ticket in our help desk. You can even do it from your dashboard. But luckily I am always on the forums, responding to scam accusations people decide to make before even contacting us ?
What you did was send bitcoin to an email address, via BIPS Send Bitcoin bookmarklet tool or our browser add-ons,
https://chrome.google.com/webstore/detail/bips/aemglakmgnficnbchapdoppolmfbhnen?hl=en or
https://bips.me/connect/firefox/BIPS.xpi ? Read more at
https://bips.me/send/howto to the email of "*******@yahoo.co.uk". Since this email address was not on BIPS, it created a redeem code and sent it to the email.
Upon further investigation, I can see that it was claimed by a user with that email, who created an account on BIPS via Facebook, and withdraw it to another Bitcoin address not on BIPS.
If you would please create a ticket in our help desk, I could provide more detailed information, as to the full email etc, or you could even export your transactions to Excel, PDF or HTML and have a full overview over the actions performed.