Pathetic Service

i have a telkom mobile contract and my agreement with telkom was that you guys debit on 31st of every month. for whatsoever reason which i really don't understand TelkoM debited me on the 25th of March and again on the 31st of March.When this happened there wasn't enough money in my account due to your debit order that went through on the 25.I have sent countless emails with my bank statement attached and all i get is we will fix this issue.right now you have suspend my phone for no apparent reason,I cannot get hold of anyone in your call center .I have been a loyal customer and you have received my payments with no fail. I will not recommend telkom to anyone since no one is willing to assist me