BONUS AIRTIME

I recharged with R55 on the 05/09/2015 and received an sms that I will receive a bonus airtime on the 06/09/2015. I then checked today the 08/09/2015 if the airtime was allocated as I didn't receive an sms from Vodacom. I then called the call centre and spoke to Selina, upon answering the call she was laughing with someone on the back round and chatting. I explained to her what happened and she checked on the system, confirmed that I did recharge with R55 and there was no bonus airtime allocated. She then said since I didn't call on the 06/09/2015, it's already late and there's nothing she can do about the situation. What kind of customer service is this? Is this the way of making customers recharge? Is it right Vodacom to promise a bonus airtime upon recharging and yet you don't fulfil your promise? I am certainly disappointed with the kind of service and response I received from Selina.