Pay upfront?

Hi. When booking an escort on Erobella via WhatsApp for an appointment the next day, she asked me to pay the appointment fee in advance via PayPal or Revolut. She said that for following appointments I could pay cash. Is this normal practice? Not sure I can trust this.

No it’s a scam unless you pay a registered agency. Or you get them to set a video phone chat. At least this way you get to see if they are the person in the picture.