taking their time to do anything

This is not the first time this has happened. I have paid my account before mid day today on the 20th April 2015 and all i am told now at 18:08 20 April 2015 no the manager who recieved my proof of payment is not on duty have to send it to another manager 7 hours later i mean when i pay vodacom, 10 minutes later and my account is reinstated this is not acceptible as soon as my account is done i will never come back to such lousy service