Cry me a river.I wonder how you sleep at night? You are knowingly taking advantage of a flaw in someones system.
I'm sure Vodacom's big knobs sleep just fine knowing their Blackberry customers were paying for a service they didn't receive for months, and what about the "Advanced" bundles that revert to Standard bundles on the 1st of the month, that's been going on for almost a year?
And what about the "flaws" they intentionally create to defraud their customers? You pay money for a data bundle, but when it's (up to) 60 days old it evaporates. If you have some MBs carried-over from last month they use your new bundle first. Migrate from pre-paid to contract, you lose your airtime. Migrate from Broadband Standard to Broadband Advanced, whoops, you lose your data. "Sorry, our system doesn't allow for that". You can be damned sure if you owed them money their system would allow for that balance to be migrated.