Airtime getting LOST while having active bundles for Voice and Data

<p>This is the unteenth time my airtime is getting depleted whilst having active bundles for Voice and Data on my uChoose Flexi 350 Contract. During December as well as now I am being charged out of bundle rates for calls although I have active ChatFor30 bundles on my contract. This makes it impossible to keep to my monthly airtime allowance as it can get depleted without me knowing. I have also not received one sms when my data bundles gets depleted Please refund my airtime lost in this manner or cancel my contract with immediate effect, without any penalty as this is not what I have signed up for.</p> <p> </p>