For some reason, Goo.gl does not log UK visitors. It will log the traffic to the URL but does not assign it to any country. For this reason, we will accept Bit.ly URLs for UK traffic for a 100% match. Please note we only guarantee Bit.ly at 100% match for UK campaigns only.
If you have a campaign for the UK that is having an issue in Goo.gl, you can request a one time rerun through a new bit.ly link. We will allow this for one URL per account.