Confirmation for upgrade call failure

I completed an online cellphone upgrade *** on 6 May (Order Number ***) for my daughter, who is a student and urgently needs this device for her studies. However, I am still waiting for a confirmation call, which is delaying the process unnecessarily. The delivery itself takes 2-3 working days, yet three days have already passed without confirmation. I called your support team this morning and was assisted by a very polite and well-spoken young man. Unfortunately, he was unable to help with the confirmation and transferred my call. The next agent I spoke to was also unable to provide clarity on the matter. Additionally, there is a discrepancy in the contract amount. The agreed monthly cost is R469, but the SMS I received states R527.97. Please clarify what the additional charges are. I kindly request that this matter be resolved as soon as possible, as my daughter urgently needs her device for academic purposes. Your prompt assistance would be greatly appreciated.