Pathetic Service From Vodacom

My complaint here is with regards to activation of international roaming .We purchased a prepaid sim for my dad to use and was advised by the call centre to sms certain details 2hours before he leaves. We had experienced an error here and was unable to activate - I called that call centre over 4times and each consultant I spoke to seemed to telll me completly different things as to what could or could not be done. 1 consultant promised me a call back as she would try and have it manually activated and I never received any call back . The next consultant offered no assitance what so ever - I asked to speak to a Supervisor none avaialble -asked for an email address she could not assist there either . I asked for a call back and would you belive it no call back ! Its nonsense, we purchased a sim and airtime to be used internationally and because of terrible service my dad is left stranded without any call service ! Will never use vodacom in the future !!!! Please have a manager contact me with regrads to this - call reference ***