is there a way in paypal to force customer to enter their phone number. Also if user is from Canada, I want to add certain surcharge to the order. The surcharge I have set in the admin section of the site. In case of paypal, because user is redirected to paypal before entering location, is there a way to recalculate the canadian surcharge.
If you checkout through a store (ex. some shop script) you can integrate the phone module/plugin so a person can't checkout without entering a valid phone number. Not possible if you sell through a button, if you sell digital goods (videos ebooks etc.,) you may use sites like ejunkie Thanks.
I am using custom shopping cart and on clicking a button express checkout initiates and the site is redirected to paypal.
Yes, it is possible. It is in the website payment preferences section of paypal's settings. There is a checkbox to require a phone number for checkout. Under profile -> Website Payment Preferences There's a checkbox for recommended and require phone number.