Vodacom's R44,00 mistake, cost me R13000

I am a client of Vodacom for almost 20 years. Yesterday I went to upgrade my contract at Vodacom Cape Gate and the upgrade was declined or I have to pay R13000 upfront. My Vodacom account has been listed at the ITC because Vodacom debited my bank account with R44,00 less than they should have for the payment for February 2026. The R44,00 was added to my debit order that went off on the 31st of March 2026. My monthly payment to Vodacom is roughly R6000 a month, but they decline me for a R44,00 mistake made by them. I want my Samsung S26 from Cape Gate ASAP, or I will move my whole profile to another service provider. 2 of Vodacom's competitors already confirmed that they will gladly move my profile over to them. Is this how Vodacom treats a 20 year old account holder over R44,00 mistake made by them???