Vodacom had a technical problem and I am the looser

I had R29 airtime on my account and just before 11pm I used the vodacom app to see what was available in data for me. I had an option of 1 GB to be used between 11pm to 5am for seven days @ R12. I tried to purchase the data bundle and the Vodacom kept saying they have a technical problem. I called in and spoke to Nandipha we asked me to try in hours time.I did so but this data bundle was no longer there for me to select. Called in again and spoke to Tebgho and just spoke on and on and showed no interest in my problem.