This is the format / wording of the only messages I've ever received from Dept of Transport, Tourism and Sport about my Motor Tax. I have one or two. The wording doesn't seem to vary, just the dates and PIN.
"Dear MR XXXXX XXXXXXXX
This is your motor tax reminder. Please retain as you will not receive a renewal notice in the post.
Motor Tax for your COLOUR MAKE MODEL expires on the last day of MARCH 2016.
If you have recently taxed this vehicle, please ignore this notice.
The pin for online renewal on the Motor Tax Website is 123456
To renew your tax, please ensure that you have the following details:
Vehicle Registration Number
Name of Insurance Company (not broker)
Insurance Policy Number
Date of Expiry of Insurance
Payment Details"