History repeats itself - deletion of SIM card

<p>I have two prepaid SIM cards that I use infrequently. In order to keep them active, I use them at least once every six months, as previously instructed by Vodacom.For the second time in 6 months,when I tried to use them,the one SIM card worked fine, the other failed to register.The call centre agent told me there was nothing wrong with the number, but the SIM card was faulty and told me to buy a new SIM card for a SIM swop.I did so, and when I called again to do the SIM swop, the agent told me the number had been deleted due to non-use, and had been re-allocated.They couldn't explain why the other card, which had been dormant for a few days longer, was still active. By deleting the number, they have also taken away from me the airtime balance of nearly R250 that was on the card.</p> <p>I am asking for my number and the full airtime balance to be restored to me.</p>