Vodacom stole my airtime while I sleep

Dear Peter

Vodacom is back again at *****ing my airtime. I was so sceptical of buying airtime since it disappears but I tried lately and again same thing happened. Went to bed with R50 woke up to R1.

I have wifi, so they must not even claim I did something with my data. Lately I have just been buying R5 because am scared of loosing airtime and now I tried to buy R100 now and again and it just runs out. Can they please reimburse me and check from their side what's causing all this. Or should I get a new sim perhaps.