IQScore.ME Made Unauthorized Weekly Charges After a One-Time Payment

I took an IQ test on the IQScore.ME website on 14 April and at the end of the test I agreed to a single payment. However, after this initial charge, the company started to make recurring weekly charges to my card without my clear and explicit authorization for any subscription. In total, ten charges of 14.99 USD were made on different dates between 16 April and 18 June, reaching the total amount of 149.90 USD. When I realised the situation, I filled out their cancellation form and also cancelled the virtual card that had been used for the payment, as I did not find any other effective way to stop these debits. I request the immediate cancellation of any subscription or recurring service linked to my data and the full refund of the amount unduly charged in the total of 149.90 USD. I expect a clear response and a quick solution to this problem, as at no time was it made sufficiently clear that there would be continuous weekly charges.