Great facilities, but at the end the experience is...

Great facilities, but at the end the experience is flattened if you have to pay 9 per towel. "It's a towel service, sir, you can change it as often as you like." It would have been nice if I had been told this when I asked for 2 towels. Now it feels like a rip-off, an opportunity to make good money from unsuspecting people who trust that a company has a reasonable pricing policy. Ask 10 random people on the street what a reasonable amount is to borrow a towel in a sauna facility and nobody will mention 9, except those who have been to Thermen Busloo. We will tell everyone to visit you, but keep it safe from your pricing policy and bring your own towels.