Poor administration from their consultants

I ha e open a new contract with Telkom on 29th of August the data sim.the consultant told me that I will pay my first premium on the 15th of October, and during that time she also indicated that my standard bank account is giving her a problem so we rather use my Absa account details. But now to my surprise the money was debited from my standard bank account on the 15th of September meanwhile our agreement was 15th of October....I made an inquiry and I spoke to Aviwe Nomfalo she said it's a mistake she said she will escalate the matter to be resolved soon that was the 17th of September, on the 25th of September I spoke to Phelelani Nomfalo and he said the payment was for the 3days of August .....how possible is that use data for 3days and is the same as 31 days and inaccurate information provided by their consultants