Dispute the charge with the credit card company based on predatory and deliberately misleading pricing information. Especially the lack of a "total amount" to

Dispute the charge with the credit card company based on predatory and deliberately misleading pricing information. Especially the lack of a "total amount" to be charged in their checkout workflow. Just because the charge has gone through doesn't mean you are out of options with the credit card company. And, you won't be responsible for the disputed amount until the dispute has been resolved.