One company is offering packs for £5.99 to help such people make a compensation claim.
If you think about it however, it is going to be difficult to establish you have a claim to be directed to the particular Government department since there is so much flow of personal data these days it is highly difficult to identify its source.
If you do find the identity of the source you then have to establish a direct reason to claim compensation.
In what way have you suffered detriment from someone knowing how much you earn (apart from three extra letters from credit card companies seeking your custom)?
Visit www.lawgistics.co.uk or call 0870 26 77 118 for more information.