MTN R40 unlimited data for 24 hours

I bought a R40 unlimited data bundle for 24 hours. After purchasing it I received a message to say that my airtime was low. But I also received a message to say that I had successfully purchased a bundle and to dial *141*5# which I did. I was then prompted to activate the bundle which I did. When I checked my balance- it was still on the original amount of data that I had and my airtime balance was the same. I used my internet for a bit and checked my balance again to notice that my data was running out. So I purchased more airtime- thinking that that was the problem. I bought another R40 unlimited data bundle and again followed the prompts and dialed *141*5# and chose the option to activate the bundle. When I checked my balance- my airtime was R40 less and my data was on 1gig which it was originally. Long story short- the bundles never loaded and now I have none of my pre-existing data. Not impressed at all