Late notification of depleted data bundle

<p>I have a serious problem with regards to your notification service when were is depleted.</p> <p>On Thursday 22 September i bought a 2GB of data of which I did receive the sms to that effect .</p> <p>Sunday 25 September I received an sms and that my 1GB has been depleted.I can't even remember when I bought the 1GB.</p> <p>Today 29 September I received an sms that I am depleting out of bundle .I am still waiting for an sms that I have depleted my 2GB till now I have not received that.All the airtime I had is now on R0.00.Why does your sytem wait for my airtime to be depleted before telling me that i have depleted my 2GB or before i start using my airtime for surfing.Immediately after I received the sms I checked my airtime and it was already on R0. 00.</p> <p>I have reasons for buying data and airtime.If my data is depleted and i dont have money I use a hotspot from my other devices for internet and now this.</p> <p>For me this is ***** and it's not the first time.</p> <p>Go back to your systems and check when do I receive sms's after depleting my bundle.</p> <p>I am surely taking this up I know I will not get any response from you.</p> <p>My mtn number is ********** 525.</p> <p>I called your 173 after about 17 attempts and was given ref# ********** 299 by your service champion Silence. </p> <p>Regards <br />Linda</p>