Deer in headlights

I don't know if "Contact Center" is even the appropriate location/board for this first-time message. Gahhh, another internet site that has no direct customer support, only "chat rooms" with people who may or may not know the answer to questions.  I hate this.  I'm not good at stuff like this, and if I didn't desperately need ZOOM for what I'm doing in my personal life, I wouldn't be here.  So... here goes... a question I bet nobody can answer...

I just now signed up (it was an upgrade from a trial account), and it seems I'm paying at least $149 per year, although I chose two additional features, so it might be around $170.  I went through the whole process, all the screens obediently, as suddenly -- I was "in"?  Suddenly, I'm HERE.  I never saw an opportunity to approve payment of any kind.  Never say a debit card page, never saw a PayPal link or any other kind of payment.  How did I arrive at this point, seemingly with a working account, and not pay for it?  Kind of nervous just now.  And what a waste of time to write this -- there's no real contact person or customer service agent.