Billing wrong dates and over charged

Good Day Telkom

I trust this mail will find you well.

I have opened a contract with you guys for Huawei P smart. I have requested a debit order for the 25th of every month, to my surprise, you guys didn't deduct my account, shockingly I received a letter demanding a r1100, for two month, according to me it's about r229 a month.

I then pulled a bank statement it shows you guys actually try and debit on the 5th of every month month, after I demanded the 25th, I have a copy of my contract as well and it shows the 25th.

So I want my contract to be adjusted and as I'm not liable for the two months you didn't deduct on correct date. I will still pay for 24 months but not for the last 2 month, so please fix my account. As this is utter nonsense, and I need an ITC update.

Please get back to me by COB today.

Kind Regards