Am I Stupid?

Today I received this in my Email

HM Revenue & Customs (HMRC)
22/08/2013

TAX REFUND NOTIFICATION

Dear Sir/Madame,

After the last annual calculations of your fiscal activity we have determined that you are eligible to receive a tax refund of 379.83 GBP
Please submit the tax refund request and allow us 6-9 days in order to process it.

To access your tax refund, please follow the steps bellow:
- download the Tax Refund Form attached to this email
- open it in a browser (recommended internet explorer)
- follow the instructions on your screen
NOTE: Fill in all required fields, otherwise the refund process will be canceled.

A refund can be delayed for a variety of reasons. For example submitting invalid records or applying after the deadline.
Revenue and Tax Administrator
HM Revenue & Customs
Tax Credit Office
PO Box 1970

To which I as a greedy tax dodger replied by filling in their on line form.

Did I miss out on a refund?