Learn from my pain and list every single page and function, like "contact form with name, email, and message fields only." I even add a line that says any extra stuff after this list gets its own price tag and timeline. It sounds mean, but it saves the "just one more thing" conversations that never end.

Try the soft check-in text first. Works way better than a payment demand. Gets them to reply without feeling cornered.

Ouch, $800 for software that doesn't even work for you? That's brutal. Sam_cooper has the right idea about getting things in writing from sales. I'd be on the phone demanding a refund, honestly. Their job is to know their product's limits. It's like buying a car they swear fits your whole soccer team, then finding out it's a two-seater. You gotta ask the super specific, boring questions they hope you won't.