Could put the option to buy tc by phone, these options would be available for Brazil, the United States and other countries ...
Would make life easier for those who have no credit card
Comment on whether you are for or against
Ok, firstly, you can buy tc with phones.
Secondly, this isn't even the right place to post this.
And thirdly, it isn't availible in all countries. If that is what you want to suggest, I'm pretty positive it's already been suggested.