Hi, I'm looking to book a LGW-DXB-MRU flight in J class and have a couple of questions -

There is a currently a double miles offer for business and first class travel from the UK. Does this mean double the 1.5 miles that I would normally get for business? Or does it mean double the 1 mile earned in economy? If the latter then I guess it doesn't make much sense as first class is doubled anyway... I'm confused....!

Also, I was going to take advantage of the companion fare offer to purchase the tickets. Does anyone know if the 2 offers are mutually exclusive or can I get the benefit of both at the same time?

Thanks