What is due at the door is paid once: on arrival, before the session, in the first two minutes. Not at the end, and not with a card machine appearing while somebody is getting dressed. A first booking, an overnight or two therapists will already have sent half through the thread by card, Revolut, Wise or crypto, so the door sees the balance.
The reasoning is entirely practical. A transaction at the end of a booking puts a clock on the last ten minutes of it. A transaction at the start removes the subject from the room for good.
At 15:00 this is unremarkable. At 03:00 it has a few more moving parts, and they are worth knowing before the hour gets late.
Cash
Euros are the price. Pounds, dollars, francs and the rest are all ordinary too, and the amount in that currency is confirmed in writing before she sets out rather than invented at the door.
The thing to watch is not the currency. It is the machine. Dutch cash machines run per-transaction ceilings and separate daily ceilings, and the daily one is frequently lower than people assume, particularly on a foreign card. A single hour is rarely a problem. An eight-hour overnight still leaves half of its block price due in the room after the deposit, which is above what many foreign cards will release in a single withdrawal.
So if cash is the plan and the booking is a long one, pull it before midnight. After midnight the daily counter has reset, which sounds helpful until you realise it has reset into a night where the banks are shut and the only recourse is a second card.
Card
Card works and is the default for most bookings. It needs one thing: a moment of signal.
That is not usually an issue. Where it occasionally is: basements, back rooms in thick-walled canal houses, and the interior floors of older buildings where the phone already shows one bar. If you already know the signal is bad where you are, say so in the booking message. It takes ten seconds and it means the question is settled before anyone is standing in a hallway waiting for a terminal to find a network.
There is a second nocturnal hazard that has nothing to do with us. Card issuers flag unusual hours in foreign countries, and a card that has behaved impeccably all week can decline at 03:00 on a Saturday for no reason except the timestamp. This is why having a second route is not paranoia.
Crypto
Crypto is the route that ignores the clock entirely. No bank is involved, so no bank can be closed, and nothing about the hour changes how it behaves. The only variable is confirmation time, which depends on the network rather than on anything happening in the room.
It is worth mentioning at the booking stage rather than at the door, simply so the practicalities are agreed in the same exchange that confirms the booking.
The number itself does not move
This is the part people expect to be different and it is not. There is no night rate, no weekend rate and no late surcharge anywhere inside the ring.
One hour costs at 03:00 exactly what it costs at midday, and the longer lengths follow the hour in step, with each hour past the third adding one more. One client with two therapists pays twice the hourly fee, so every length with a pair, the overnight included, is the single figure doubled hour by hour. An eight-hour overnight with one therapist is the only block priced under its hours. The rates table on each therapist profile reads the same at every hour of the day.
The short version
Decide the route when you book, not when the door opens. Cash if you have it, card if you have signal, crypto if the hour is awkward and the bank is unhelpful. The payment guide goes through each one properly.
None of it takes long. Two minutes at the start, and then it is done, which is the entire point of doing it at the start.