Blackberry Internet Service

Every month I buy my blackberry internet service bundle, so the previous month I tried buying BIS it did not work until I had loaded another r60 and I did the sms for BIS again, I did not really bother, but this past month the exact same thing happend, when I have phoned vodacom when it happend again the consultant informed me that they are having a problem with their service I must wait 24 to 48 hours, however in 30minutes after my call it worked, I later called vodacom to get my airtime refund because I am not going to lose r120 in all, I have been calling for three days, the consultant today has said he will call me back which he did not, but did advise me they would not refund, I do not want the money back I want it in airtime, vodacom is a big company does it not train their staff, or does vodacom have the mindset of Eskom \the don't care attitude"";I feel like vodacom is *****ing from me"""