American Express Membership Rewards - Holding both AMEX Plat and BA Amex PP?

I currently have an AMEX Platinum, my girlfriend has the supplementary.
Would it be possible to get BA AMEX card and still get all the points etc.?
If I can not, could she?

I've been searching this for a while but can't find a clear definitive answer

Thanks for any help forthcoming. (By the way I'm UK based)

I'm sure your girlfriend can apply and get the points, and you can get the supplementary card via her to use.

Not entirely sure of the other case, but there are threads here and at the BA forum where you could try searching.

I'm sure your girlfriend can apply and get the points, and you can get the supplementary card via her to use.

Not entirely sure of the other case, but there are threads here and at the BA forum where you could try searching.

Thanks for your advise, I think it'd be more prudent for her to apply.

I have tried searching though, but I just can't find the answer :S

Just wait for a bit for a more seasoned FTer to respond. I know that you can't get platinum bonus if you already have another Amex-issued card, but yours is the other way round.

Note the terms say this:
1. 18,000 bonus Avios will be awarded onto your account once you have been approved and a minimum of £3,000 on goods and services has been spent and charged to the account within three months of account opening. If you are a British Airways American Express Credit Card or British Airways American Express Premium Cardholder, you will not be eligible for this offer and this is not an offer to upgrade. Please note that it can take up to one month for bonus Avios to be awarded to your account. Offer expires at midnight on 12 September 2012.
So this only excludes the BA cards, not the Platinum card.

This is the thread at the BA forum but it is massive: http://www.flyertalk.com/forum/british-airways-executive-club/1046913-amex-ba-master-thread.html

You are both eligible for the bonus.

If you live with your girlfriend, you could also refer her for a Plat. It is based on household income so you should be ok. 25k bonus for you for referring and 52k for her for being referred!

Thanks all for your responses. I guess I'll go ahead and get it then.
That companion ticket is too good a prospect to shy!