I currently hold a BA Normal Amex card for which I triggered a 2-4-1 voucher yesterday and this is showing on my BAEC account.

A couple of questions:

1. If I apply for a BA Premium Plus Amex can I still hold my BA free amex? i.e. they won't just upgrade it as I want to have a different membership period for my spend.

2. Doing this won't effect the 2-4-1 already posted? and can i have 2 posted on my account?

Thanks in advance