I keep trying to use the boost up promotion with Boost Mobile - this will be maybe the...

I keep trying to use the boost up promotion with Boost Mobile - this will be maybe the *th time - and each time my order is accepted, i get a confirmation number, money is taken out of my account. A few hours later the order is cancelled and the money is deposited back into my bank account. No reason at all is given. I have called every number I can find for Boost Mobile. I talk to someone in "sales" (they do online sales, but not THIS KIND of online sales...???) and then they say they will transfer me to someone "in Boost Up." This only transfers me to the automated menu that is used to do things like check account balance and things like that - there is no option, whatsoever, involving Boost Up.**If the promotion doesn't actually work, I would like to quit wasting my time.