NetShort Subscription Billing Error – Charged After Canceling Trial

I was using a NetShort subscription with a 7‑day free trial and canceled it, but despite this, I was charged today, 29.99 USD. I had just added this money to my card specifically to buy diapers for my three kids, and the unexpected withdrawal has put me in a very difficult situation. I started the trial and canceled it within the free trial period, and on the screen, it clearly stated that I had a 7‑day free trial. Even though I canceled, NetShort still took 29.99 USD from my card today. This charge is unfair and contrary to what was promised at the start of the trial. I contacted NetShort customer support about this issue, but have not received any response so far. My NetShort account is registered with the email address: griffinbabygirland***@gmail.com. I request that the 29.99 USD deducted from my card today be fully refunded as soon as possible and that this incorrect transaction be reviewed so that similar situations do not happen again.