I tried to cancel my subscription and this was part of the reply from this company:
"You started a 3‑day free trial period on 6th February, which was not cancelled within the trial period. As a result, it automatically upgraded to a full membership on 9th February, and you were charged $33 per month. Shortly after—within half an hour—you cancelled the membership yourself from your account.
As per the terms and conditions, access to download manuals ends immediately once a membership is cancelled, and this is clearly stated on our website."
Be careful if you deal with this company.