So it's okay to refuse to pay for a service that's already been rendered to you because they don't follow the law to the T and charge your card in a different w

So it's okay to refuse to pay for a service that's already been rendered to you because they don't follow the law to the T and charge your card in a different way. That seems entirely reasonable. If I were paying the bill in a restaurant and a member of staff insisted I paid using some personal transfer service, I'd probably refuse too unless I was able to confirm that it was legitimate. you're also breaking the law if you walk out of a cab without paying. Difficult to argue that's the case if no opportunity was offered to pay legitimately.