Data trick

Many telcos round up mobile sessions to the nearest megabyte instead of kilobyte, this is the same trick they played/play in voice.

Below is an interesting article published on Sydney Morning Herald:

Read more: http://www.smh.com.au/digital-life/mobiles/vodafone-ceo-hits-out-at-rivals-data-rip-off-20130408-2hgoa.html#ixzz2PsVxNY27