Rules for Family Stand Tickets

I've recently moved season tickets (2 adult, 2 U10) from WSL to S1A, the new family stand, for the 2013/14 season. After bumping in to a post elsewhere that suggested that you cannot upgrade family stand tickets, or that you can but only if you have at least one child, or only if there is a certain ratio at the end, and variations on same please could you clarify the specifics around how the family stand seating works? Specifically,

• If two adults and one child go is that okay?
• If one of the children does not go and we upgrade the ticket to an adult (so three adults and one child) is that okay?
• If neither child goes and we upgrade the tickets to adults (so four adults and no children) is that okay?

To answer the three questions in order.

Yes
Yes
Yes, but we'd move you into another area of the stadium (subject to availability)