> In order to use the Blacksmith Software Inc Service, You must set up an account. During the account setup process, You will be required to connect your GitHub account and install Blacksmith’s GitHub integration in your org, and add a valid payment method, such as a credit card, which will be processed through Stripe. Alternatively, for larger contracts, You may request to be billed via invoice.

> By providing payment information, You authorize us to charge Your credit card for usage fees or, in the case of invoice-based contracts, agree to make timely payments as specified in the invoicing terms.

Unless this guy had a larger contract and requested to be billed via invoice, this is a violation of terms and he should tell them to stuff it.