The balance, handed over as the visit begins
The balance is whatever part of the fee has not gone ahead as a deposit, paid at the start of the visit in the amount already agreed in the thread.
On a booking with a deposit, the balance is the other half of the fee. On a booking without one, which is a returning guest's hour or two later the same day at a city address, the balance is the whole fee. Either way, it is paid when she arrives, at the start of the visit rather than the end.
Why at the start
Settling at the door means money is not sitting between two people for the rest of the hour. It is handled in a minute, in the amount the thread already stated, and then it is done. Guests who have it ready in the room before she knocks make that minute shorter still.
How it is paid
The thread states the amount and the ways it can be paid before she sets out. Cash in euro is the plain choice. Cash in another major currency is welcome too, as long as the exact sum in that currency has been confirmed to you in writing before she leaves. All the prices published here are stated in euro.
Nothing added at the door
The balance is the agreed figure and nothing more. There is no charge for a late start, a weekend, or her journey within the city, and nothing is added at the door that was not in the thread. If the length changes during the visit by agreement, the new figure follows the ordinary rates on the roster.
Ending early
If a guest decides to end a session before the booked time, the balance is still due in full for the time that was reserved. See her limits for what happens when a visit is ended for other reasons.