Continue button doesn't work

[LtrDan]

HI, using ios 9.1 , added a button and called:
[Ringcaptcha verifyPhoneNumberWithAppKey:@"xxxx" andSecretKey:@"xxxx" inViewController:self.navigationController delegate:self success:nil cancel:nil];

when i push back - cancel method works! (delegate)
when i push continue - nothing happens..(no further screen or so..)

tried to put root view controller in "inViewController:..." - same thing..

Thank you, Dan