OK, This is complicated...

Hello all
I have booked for next month 4 Econ tix for me & the family to fly into LAS from Gatwick, returning from LAX to Heathrow. (Woo Hoo!
)
It has now become apparant that an 11 hour flight is going to be too uncomfy for me due to medical reasons so instead of potentially spoiling the holiday I decided to upgrade to Upper so I could lie down for most of the journey.
Only problem is.....when I called ebookers to upgrade my X ticket they said that it would cost #5000 to upgrade :0 Thanks but no thanks!
I then plugged my outbound flight into VH (as a fly drive) with a return from LAS 1 week later.....Lo & behold! An upgrade to Upper was available for the Outbound flight, with the whole thing coming in at exactly half the price that ebookers offered!
So, I went ahead and booked it y)
I am now travelling on the flight in both Econ & Upper, on 2 completley different bookings. I will also not be collecting the rental car OR returning to Blighty a week after landing in LAS....I will come back on my original ticket booked to leave LAX some 4 weeks later.......or will I?
My question is, because I dont check in on the original Econ outbound flight will they cancel the return portion of the flight?
Seeing as I wont be checking in on the Econ Tix will they re-release that for sale? I was hoping they would just leave it as it is so my girls get 3 seats beteween the 2 of them seeing as I have paid to be in that seat with them.
Is this even allowed? will I get into trouble for booking a return fly drive then not using the return flight or the car? Will they cancel me off my return flight from LAX seeing as I didnt check in at Gatwick?
I would be grateful for any advice you can give me, I dont want to turn up at check in on the day of our hols and have an almighty kerfuffle
Finally, as I understand it as an upper pax I can take 1 guest into the clubhouse with me, will I be able to pay on the day for my 2 girls (who are over the age of 12 and super well behaved) to come in aswell? They are on the same flight but obviously now just on a different booking to me. ?|
I hope I have managed to explain this OK & you get the drift of what I'm on about lol!
Thanks

I have booked for next month 4 Econ tix for me & the family to fly into LAS from Gatwick, returning from LAX to Heathrow. (Woo Hoo!

It has now become apparant that an 11 hour flight is going to be too uncomfy for me due to medical reasons so instead of potentially spoiling the holiday I decided to upgrade to Upper so I could lie down for most of the journey.
Only problem is.....when I called ebookers to upgrade my X ticket they said that it would cost #5000 to upgrade :0 Thanks but no thanks!
I then plugged my outbound flight into VH (as a fly drive) with a return from LAS 1 week later.....Lo & behold! An upgrade to Upper was available for the Outbound flight, with the whole thing coming in at exactly half the price that ebookers offered!
So, I went ahead and booked it y)
I am now travelling on the flight in both Econ & Upper, on 2 completley different bookings. I will also not be collecting the rental car OR returning to Blighty a week after landing in LAS....I will come back on my original ticket booked to leave LAX some 4 weeks later.......or will I?
My question is, because I dont check in on the original Econ outbound flight will they cancel the return portion of the flight?
Seeing as I wont be checking in on the Econ Tix will they re-release that for sale? I was hoping they would just leave it as it is so my girls get 3 seats beteween the 2 of them seeing as I have paid to be in that seat with them.
Is this even allowed? will I get into trouble for booking a return fly drive then not using the return flight or the car? Will they cancel me off my return flight from LAX seeing as I didnt check in at Gatwick?
I would be grateful for any advice you can give me, I dont want to turn up at check in on the day of our hols and have an almighty kerfuffle

Finally, as I understand it as an upper pax I can take 1 guest into the clubhouse with me, will I be able to pay on the day for my 2 girls (who are over the age of 12 and super well behaved) to come in aswell? They are on the same flight but obviously now just on a different booking to me. ?|
I hope I have managed to explain this OK & you get the drift of what I'm on about lol!
Thanks