Telkom is *****ing from their customers

I have just loaded airtime of R30 and then R12 to my Telkom mobile pay as you go account and just after I received the sms that the money been deducted off my bank account I went to check my airtime balance...... only R40,50... Telkom stole R1,50... it’s not much but when I try to call their customer service the answer service said that they are not open and if I try to use the Telkom app it say you can not report that problem... now imagine Telkom take only R1,50 from each customer..... to what amount will that get? They are *****ing blatantly from their customers. Please cal me and fix the fault and send a written explanation why you have done it, otherwise I will give more information about your Bad service