Vodacom poor service

<p>I changed my banking details and have called multiple times to verify that Vodacom will debit my account timeously. This has been a terrible inconvenience because each month its the same thing and i have to beg to pay for a service that ive arranged over and over with Vodacom have a reference number and everything but the account has still not been debited. Please advise as to why it is so hard just to have this service sest up im at my wits end now</p>