Can i transfer subway club card dollars from one card to the other if registered in another email?

I’m talking about Subway Sandwich Card. I had 3 $25 gift cards. I registered 2 of them with one email address and the last one i mistakenly didn’t add it to my email address but added it to another email of mine.

So one of the subway cards now used up and has no balance but 27 points on the card. Another card has about $11 and 13 points on the card. And the 3rd subway card i haven’t used yet and has the full $25 balance but this is the card i registered with subway but used my other email address by mistake. So my first 2 subway cards, i could transfer the balance from one card to the other.

Is there a way i could transfer the balance of my 3rd card to the other ones? The reason i ask this is because i would want to redeem them for stuff like a footlong sandwich that is 75 points. But would this still be possible if one card has 27 points, one card has 13 points and the other one has 35? When i ate subway a lot, i always racked up a lot of points and then used it everytime to get a free footlong sub but it was using one card.

Thus 3 subway cards that total 75 points would be fine or can’t?

Does anyone know about this?

Why don’t you ask at Subway?