Legal but unethical business practices

I registered and payed for a NordVPN 1-year plan (Manual renewal). I unfortunately do not actively use the credit card that was used to make payment anymore and do not check account balances on a regular basis. When I did I found out my plan was automatically renewed I immediately queried the the debit order. NordVPN referred to their Terms of Service which do state that all payment will be AUTOMATICALLY renewed based on the same period as registered for initially. I was 30 days late so naturally did not qualify for a refund. The problem I have is that why use two completely different terms for the same service. It can only make me think that they have done this on purpose! When I wanted to cancell the subscription the option was not available. The support person stated that it is already cancelled but cannot say by who. This was a really regrettable experience. I still did not receive confirmation of the suspected cancellation and I am not able to do so.