Could you post the url for the website?I've always added the numbers on their website or through the Rogers my account app.
Turns out I have a buissness account and I can't add My 10 on www.rogers.comMake sure your not using wifi when your trying to use the app. Www.Rogers.com is the website, on the right side you can login our make an account where you can change your my10 view your bill etcetc