When looking at the profiles data, if a person is located in Wales then this gets attributed to Rotherham (I assume because of the NUTS2 region of Barnsley, Doncaster and Rotherham). Wales is sometimes included in this as there is a small ( < 8,000 population) village in South Yorkshire called Wales.

However, all profiles from the country of Wales are being tagged to here.

I have looked at a selection of profiles on the source urls and none mention jobs or living locations anywhere near South Yorkshire. Rotherham is being added in the field. I have included a list of IDs that illustrate this.