False and misleading price from My Vodacom app purchase for takkies

I placed an order on my Vodacom app Monday evening, the item was R279. I paid with my car and the transaction went through without a hitch. When selecting the item it was not mentioned that there would be an extra charge for delivery like how Takealot would before you proceed to make payment. I then received an sms with a link and code. When I clicked on it, the price was more expensive(see screenshot). I continued just to see if the price would change when checking out but it didn't, the total including delivery was now almost R500. Check all screenshot and the comms I had with Lawrence, the supplier. He even called to clarify from their side. I haven't still placed my order because of the price difference and delivery.

Through our comms with Vodacom, I still haven't received a conclusion from and I am the one who has been following up to check progress. This morning, Aswin from Vodacom calls me to tell me I must come up with or solution or get a refund. I told his I don't want a refund but I want my takkie as advertised and promised delivery. Please help me to resolve this, I find it very unfair that they made a mistake and now I, the customer, must pay for it.