no. but you could buy them a krono and either give it to them in person in game or send it in a parcel to them or buy a gift card for the amount and give them the info
That's exactly why it isn't possible. If boxers could do this, there would be less incentive to pay $$ to buy dbg cash for things on your main account. I buy dbg cash rarely, but I'd never buy it again if I could just pool my alt accounts' cash.