MyIQ Website Promised Free Test Then Tried to Withdraw €29.99

Two days ago I paid €1 on the MyIQ website to take a free IQ test from my Android phone (using Chrome). I only wanted the test result. During purchase or afterwards, I was not informed of any subscription or automatic payment. Today, however, I noticed an attempted withdrawal of €29.99 from my bank account. Since my account didn’t have sufficient balance, the funds weren’t actually taken—but the attempt itself disturbs me.

I made the purchase using my salary card and my email address is s**********@gmail.com**. I only made a one-time payment, and did not subscribe or set up any recurring payments. I do not want any further funds withdrawn from my card or any actions taken. I request that the necessary steps be taken and that I be given an explanation.