It's a process thing but it's not a regulatory thing.
There are no regulations governing the transition of cap table management, as generally this thing is handled by most companies internally by their Legal and/or Finance departments. It's just tech that felt the need to create software for something that can be done in Excel.
I'm not sure you understand what I'm getting at here. Carta manages things like employee stock options. If a company has issued equity to employees or investors, they can't just shut off their Carta account and be done with it - those obligations need to be managed somewhere, and part of the offboarding process needs to be a managed handoff of that information.
They should design their service (as in customer service experience) to decouple cancellation from offboarding.
I cancel. I stop paying. Now do your offboarding process.
If that loses them too much money then ask for that upfront as effectively a retainer.
Now you go in to the relstionship eyes open. You pay 3 months upfront then you pay monthly. When you want to stop you click "unsubscribe" with a few are you sures.
Then you stop paying and they offboard you when they get their shit together. After cancellation and prior to that offboard meeting you are getting some bonus free subscription time.
If the offboarding dude is on paternity leave then treat it as extra free subscription as it is on the company not the customer.
Fighting to unsubscribe and chasing companies up sucks.