I want to fix the price for a towel pakket on 10€/person , but I can’t add / person , so people think it’s 10€/stay which is of course impossible

So please tell me how I can fix this.

I also want to ask a caution, but I have to write this via inbox to the clients if I want this by bank account , how can I do this ?

"Huys Golfzicht"