It's the trial, after the trial you get charged.
I tried to register with Click2pay using a UK proxy, and it worked, until I read they try calling your number to verify. That would be a give-away if I just used a fake number, so I gave up.
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Right, after some deeper research, Click2pay went to German ownership. The company no longer serves US-customers, but they don't tell you that on their site.
My method to circumvent this was using a UK proxy, but I don't have one that will let me …