My view:
1) Text confirmation should be shorter - three essential services, clarifing if extras and be explicitly at discretion (“OWO, French Kissing and CIM inclusive, at your discretion, OK?) - anticipate her justifiable concern that you are a smelly fucker.
2) Put her at ease and gauge the tone before final contracting in the room. I bang on about the 60 second 4 S test. In the room, before you hand over the cash, ask yourself and answer 4 questions:
Sexy?
Smells good? (room / girl / bed)
Services as agreed? (As below and central to this discussion.)
Smiles?
For Services part of the discussion, describe the playbook for the session
in the room, before you pay, money in hand but don’t give times. Ask her if this is OK.
See my recent review on porn_Arina.
It only counts if you are prepared to walk, but it will save you a lot of money and increase the quality of meetings you go through with.