Zain Ghana is currently running a promotion called Happy Day where for ¢2 per month, every other day sees you getting back credit for the calls you made the previous day.

Here’s the thing: although Zain charges 8Ghp per minute for calls (and that’s billed per second), they somehow forgot to mention that when using your bonus credit, you get charged 14Ghp/min and calls are billed per minute. You made a call for 13 seconds? 14GHp gone. Since most of us are unable to squeeze our conversations in nice round numbers, you’ll find that you run out of bonus credit rather quickly.

Sneaky bastards. I wish I had come up with it.