********** Activities on Telkom Mobile

My mom is old and she had a very bad experience with telkom today. She first recharged with R100 and then when she tried making a call immediately after recharging she got a 'you have insufficient funds' she then recharged again with R100 tried to make a call for the second time and she got a 'you have insufficient funds' she then attempted recharging for the 3rd time with R50 and she still got the same thing. So she lost R250 in less than 10min when she was trying to make an urgent call. I've been a loyal Telkom customer for 7 years now and this has never happened. Kindly please reimburse my mother for her airtime because to me this is **********.