Do I have to communicate through the website?
For Pros arranging sessions with clients, yes. These requirements apply to Pro-client conversations only; they don't apply to enthusiast-to-enthusiast conversations.
Every appointment with a client you met through Cuddle Comfort must be confirmed with the booking panel. That includes later sessions with the same client, not just the first one. There's no waiting period after which a Pro can permanently move clients met through Cuddle Comfort outside the booking system.
Contact information and off-site communication can only be exchanged after the relevant session has been confirmed. The process is straightforward: either person sends a proposal, the other accepts, and contact info can be exchanged from that point.
If you decide not to go ahead after all, cancel the booking. Canceling early doesn't negatively affect your account, though separate late-cancellation guidance can apply close to the start time.
If you need to share photos, the website has an attachment feature for that.