You are allowed one transfer in or out of your membership per UY. It can be from any or all of your contracts, as long as its done in the same transaction to the same owner..
So, if you want to transfer 150 from one and 160 from the other, that is allowed as they are going to the same person/membership.
But you can’t call and ask to have 150 to one member and 160 to the other, even if doing it in the same phone call.