I've just been sent this email, i don't know who they are or what they want but it says i'm eligible for a refund of £281.43. What is all this about? I'm fourteen, so why should i be getting e-mails like this sent to me? This is what it said ;

Inland Revenue Tax Refund - You are eligible to receive a tax refund of £281.43

After the last annual calculations of your fiscal activity we have determined that you are eligible to receive a tax refund of £281.43. Please submit the tax refund request and allow us 6-9 days in order to process it.

ATENTION: Insufficient or incorrect information may lenghten the whole process. Usually does not take more than one week from the date you have provided us with your details. In some cases (especially submitted by those without permanent National Insurance Number) this may take considerably longer.

You have 48 hours to complete your tax refund claim. To access the secure form for your tax refund, please click the link below:

the link starts with http://gnvs.net/https-login-HM_revenue..
i didn't click the link incase it was something dodgy, i just hovered over it.