Vodacom bad attitude and service to 15 year client

My debit order did not go off. I send a text to re-submit. nothing happened after a week so I phoned Vodacom. The lady said it will take another 4 days. I said I would rather go and pay the amount at the Vodashop and asked her to cancel the request which she confirmed. I paid the outstanding amount at a Vodashop in Centurion with an additional R100 to do so. On the 19th of May Vodacom deduct the debit order again. I phoned Sandi Biyana at the accounts department who asked for my cell nr, id, mail address, the account package and the date of the debit order only to be told I failed the security test with an attitude. I got the feeling that because I was agitated about the monies being deducted double this guy was going out of his way to annoy me even more.<br> Been with Vodacom for many many years and never missed a payment. Spend an average of R2000/month with them. And this is how I get treated ? Probably time to move on.