You can contact your credit card provider and request a block, but i dont think stripe will do this.
Its always in a company's best interest to cancel if you request or provide a mechanism.
I would suggest trying to work it out with the company, then file a complaint with stripe and finally contact your credit card company to block future charges.
The solution to me is to not provide free credit, but to credit the creation of a new droplet for existing users. Many will scale up and not scale back down. If im on the edge if i need to throw another droplet behind the loadbalancer and your like DO IT, you've been a great customer so we'll give you a month free for the new capacity, am i going to risk removing it.... not if my product is doing well. its a WIN WIN. an offer like this would be awesome to roll out to loyal customers with semi-produciton work loads (2-4) medium+ droplets already. It solves the problem of incentivizing loyal exisiting customers, along with driving business needs of not burning money without a return. Also HMU if your looking for a SVP of Product or something like that, I clearly have some good ideas for you.
personally i understand that father is involved and wants to help. But a valuable lesson would be having the kids write the investor update, learn to face the failure.
I get that they are only 11, but if your going to have them launch a business they should learn the ups and the downs. Otherwise just post your prototype on Hack-a-day and have it be a fun family project.
Perhaps I should revise with more of a focus on JSON/Services. I was trying to stick to a common pattern across languages. But that might not be the best approach.
Its always in a company's best interest to cancel if you request or provide a mechanism.
I would suggest trying to work it out with the company, then file a complaint with stripe and finally contact your credit card company to block future charges.