Vodacom not meeting standards

I'm on Prepaid Bonus Plan. This means that everytime I recharge my airtime, the same amount I recharge with gets allocated as a bonus, which is valid until 23:59 on the day you do the recharge.

For the past few weeks I have been having a problem with the bonus almost immediately after it is allocated. I have tried to get this resolved but I have been given the runaround. That just confirms that they are ************* and unreliable as a service provider. I have been with Vodacom for a long time but now I think I'm seriously considering looking for a different provider.