Bad service

i'm am soooo disappointed with Telkom, i have had contracts with you with no problems but this is the first. i took out new contract with you guys and i have been paying well for about a month or two now, in both occasions i had to make an EFT as you guys were either not debiting on time or not debiting at all, last month August to be exact i made an EFT on the 27th as i saw that you guys tried to debit on the 24th instead of the 25th,according to one your agent Monica Msomi it is because if the 25th falls on a Saturday you guys have to debit on the Friday (24th), now my question is, with who did you guys make an agreement about the 24th, is it my fault that the 25th falls on a sat,i agreed on the 25th because i know from that day on there will definitely be sufficient funds in my account... further more after seeing that you guys were not debiting on the agreed date i took initiative to make an EFT so that my account doesn't fall into arrears , yet on the 29th you people debited again on my account, i had to reverse that money resulting in my bank charging me.....to sum this up i am currently due to pay R202 extra on my account because you guys decided to debit on the incorrect date, is it REALLY my problem that the 25th fall on a weekend? and why don't you change your rule to suit the clients needs and have an Agreement about debiting on weekends, i work i retail the 25th will always be my pay date meaning there will never be money in my account on the 24th.