Things like this are a great use-case for privacy.com, or any other service that offers burner cards. Set a monthly limit, or make it one-time, etc. and make sure the company can't charge you more than you've specified.
I'm not affiliated with them, but I'm a fan of their product.
What would stop Adobe selling the unpaid amount as a bad debt to a collections agency in this case? I have been hounded by debt collectors for far smaller amounts that slipped through the net.
I'm not affiliated with them, but I'm a fan of their product.