For the past couple of days I've been looking at booking a flight to LHR in March or April 2017 in PY. When I apply the GIFT2016 promotion code, the fare goes up by $450
Whiskey, Tango, Foxtrot
It's the exact same flight, same fare bucket, same dates. The only difference is the increase in price. I tried different dates and I used the old and new website, different browsers. Fare goes up regardless. Does not sound like fair/good business practice to me!
I would advice caution when using this code.