New data disappeared

On Wednesday 23rd I noticed my 80gig day data has expired. I called telkom to add another 8gig since we are at homeand wantsto watch movies.I was told to buy airtime worth R559 so thatit can be converted into gigs. I did this and it was working. This morning, Sunday 27th, wwe couldn't connect to the Wi-Fi.I called telkom and was told by the consultant, Ritabile my day time gigs are finished and she cannot see that I bought a new bundle on Wednesday. The line was dropped and she didn't call back. 80 gigs lasts me all month, how can it dissappear in 4 days time,whenI wasn't even at home on Friday-Sunday?