Hello, I'm going to be 200 miles short of renewing my status this year. I will soon book a return trip from MIA to CDG, in order to get the missing miles I noticed I could book MIA to CDG to BRU then CDG to MIA coming back. I could stop by in BXL and visit a friend then take a regular train home, but what if I don't even board the CDG to BRU TGV, will they know? It says I need to pick up my TGVAir ticket at the SNCF counter, do they check I actually board the train afterwards?