account query

In December I received an SMS notification that I owe an amount of R939.65 on my account with Telkom, I called in around the 21st December to query that and I was advised that due to my contract that ended in November my 5GB plan was turned into standard rates and is billed at R349.50pm and that's why my bill was high. I advised the consultant that no one told me, she transferred me to her manager who told me that they cannot do anything about it I must pay. Telkom debited my account on the 24th December and it bounced. The beginning of January I called in to ask if they can debit again i was advised to make a direct deposit at absa she smsed me the bank account and reference number. On the 12th January 2016 I went to deposit the money at Absa Bank Flora Mall Roodepoort, on the 13th I got another SMS Saying my account will be suspended if I don't pay. I called Customer service Spoke to Mongezi who advised me that I actually am supposed to be refunded that R349.50 as I was never advised that I'll be on standard rates after my contract ended. Now today R1500 has been deputed from my account my debit date is supposed to be 25th Jan, I want my money back TELKOM I cannot wait 72hrs NO!