I'd like to sign up for a year with the $99 promotion going on now, but this is a deal breaker. Unless I'm using wifi, I can't get my iPhone to play the video portions of the lessons. I've tried switching between LTE and 3G networks, resetting the phone, changing the video quality, etc. etc. No luck. I do not have this problem on other websites, only here, which is frustrating as it's the only site that I pay for content. Please help!

Thanks,

Doug