IQscore.me Charges Hidden $15 Subscription Fees After Promising $1 Test

I took an online IQ test on iqscore.me and, after finishing the test, the site stated that they would charge only 1 USD once to show my test result. Trusting this statement, I entered my card details and completed the payment. Despite this, I noticed that my Garanti Bank card was charged 8 times for 15 USD each during July and August, which I never agreed to. I was not clearly informed that a recurring subscription or any repeated charges would be made, and I did not see any transparent explanation or approval screen for such a subscription. I have now cancelled the subscription on the site, but I am worried about the possibility of being charged again even though I cancelled. These unexpected payments have caused me financial loss and damaged my trust in the service. I request a full refund of all eight 15 USD payments that were taken without my clear and informed consent, and written confirmation that my subscription is fully cancelled and that no further charges will be made to my card.