Account shows in arrears even if paid before month end!

So after irritating automated calls from Vodacom accounts on the 1st of July, asking for a payment arrangement because my account is in Arrears(it wasn’t I paid it 30th June with excess funds) and even after calling Vodacom customer care to check and they verified my account was paid and apologized and said the system will auto update. I go to Vodashop centurion mall to update my contracts and to do a sim swap only to be told my account is in ARREARS!!!Now Vodacom I want you to update my account and remove the bad credit and bad payment history as the problem is with your accounts department. I expect better treatment as I am spending R10 000.00 per month on all my contracts!!! I will not hesitate to move my contracts to another network or even cancel the contracts if you don’t rectify my payment status and remove this arrears and late payment mark against my name. I AM FURIOIUS!!!!!!!!