Emirates Airlines Skywards - Redeem miles AFTER flying?

basically 3 of my relatives have flown from Manchester to Hong Kong via Emirates (approx 7,000 miles) and come back, and im about to go on tuesday, but neither of us have a skywards card. was just wondering if we were all able to collect the points AFTER flying and if they would be able to be put onto one card?

Thanks

`I'm not 100% sure, so take a read of the skywards site. But you could register, and claim back the miles - for inidividuals. You can detail your flight (may need details from boarding pass?) and get miles credited retrospectively. Wouldn't work for all into one account, although you could maybe do the 20% family thing.

I'm sure someone with more knowledge will correct me, but explore the skywards site.