My unprofessional Vodacom experience

I've recently got a cell phone contract through Vodacom Ive always got money in my account and make sure I have enough for my cell phone contract you guys don't take it on the first then I get charged for late payment why? Last night when I checked my credit score it was down with 6 points and it said it was because of a missed payment through Vodacom I don't appreciate this at all ! I won't recommend you guys to anyone once my cell phone contract is finished I'll take my business somewhere else !! I've also app**** for a new contract and no one has gotten back to me Vodacom is a useless company and they only care about money !