I have sold a domain through sedo few days ago and the funds should arrive in sedo's account soon (the wire transfer has been sent 4 days ago). Today I've won an auction and it seems I cannot use those funds to pay for the new domain I've acquired. The answer given by the transfer agent was "Please note that you can not use the payment for the other transaction because they are separate transaction."

I think it would be better and easier if we'll be able to keep the funds in our accounts and use that account balance when we acquire new domains.

Or in the case SEDO doesn't want to keep the funds, in my current case (to pay for the new domain) it would be required only a simple deduction from the funds I will receive.