Scam: Tudum.co subscription via App Store app download

Has anyone downloaded a free app from the Apple app store and ended up in a website called tudum.co, where they trick you into providing information for their records ostensibly to verify you?

I downloaded the free app Eraser ~ Stickers, and when I opened it, I was immediately taken to a web form asking for my name, email address and credit card for (verification purposes only, they said). They said my card would not be charged. I thought this was the Eraser ~Stickers app verification process.

But it is a scam. I had actually been subscribed to tudum.co and was then informed that, after 5 days, it would not be free. There were no explanations of exactly what the cost might be. When I tried to cancel, there was no way to do this online or via email, except through their contact form or via a contact phone number. I sent a cancel message via the form but the phone number said it wasn't available until weekdays. I received a member confirmation email but not cancellation confirmation.

As a result, I have cancelled my credit card and informed the credit card company about this and am checking my bank accounts. A charge of $1.00 had been made to my credit card via ent-hole.co — probably to make sure it was a valid card.

I hope Apple will investigate this and do something to prevent this kind of thing. These companies are offshore companies.