Hi and thanks to all the advice I've picked up on here I've managed to get to Bronze (I know, I know it's no big deal to most of you but it's a bit of a milestone for me

). I'm now on 370 TP and have an upcoming flight MAN-DXB on WTP. So checking the TP for this trip I "think" I get the following - 10 TP each way MAN-LHR - economy and 90 TP each way LHR - DXB in WTP, which adds up to 200 in total, leaving me just 30 TP short of the 600 needed for Silver. My question is do you have any advice on earning the 30 TP the cheapest way possible to get me to 600 TP annd Silver? Would love to make it work if I could do it reasonably cheaply.
Thanks all in advance
Jan