Online order service is pathetic

I upgraded my contract online on Monday and got a call to from the online support team. received an sms confirming that my order will be delivered in 2-3 days. I get a call today 15.06.18 and am told that they can only make delivery on Monday the 18th. this is unacceptable. its not the service I signed up for. if you cant deliver according to the timelines you specify rather cancel the order. when I speak to Julia who is the team leader in that call centre she doesn't even see the reason to try and speed up this order and offer me no better options. what terrible team leaders does Vodacom hire who don't understand service recovery. I am annoyed by Vodacom's service and will not promote it for people to use it as a service provider. Since I spoke to them I still haven't received an sms confirming my contract cancellation. but she was quick to drop the line on me. Julia you need to learn a thing or two about servicing customers. Irate customer.