Last November 2017, I applied for a visitor's visa for the UK. I indicated in my online application that I will travel in March 2018. I even paid for Priority Processing because I needed my passport for a trip to the Philippines in Dec 2017-Feb 2018.
My visa arrived and unfortunately, I did not scrutinize or examine it until today Feb 19, 2018, while making final travel plans. The Visa is valid for 02/02/2018-02/08/2018. Can I still, use this visa or am I at risk of being denied entry at the airport in Heathrow. My travel plans are finalized including hotel bookings.