No Tesco? Lucky you. We have 4 of them locally - 2 superstores and 2 express stores. I did complete a mini survey for them recently so I was initially thinking this is genuine. 10 seconds later I saw it wasnt.
Ozzy, you are so lucky not to have been tarnished with the Tesco brush. We are inundated here and for many people in many areas, they have NO choice. They live in Tescoland, like it or lump it. I hate Tesco. Fortunately, I have quite a choice locally and with lots of small independent shops.
Good way to judge, if it is addressed 'Dear Customer' it will almost always be a scam. Genuine Companies have your name and will address Emails accordingly