Worst experience with an upgrade in my 25 years of having a cellphone

I wish you could give negative stars because they don't even deserve 1 star. I did an upgrade online on an existing number. At first they sent my phone to an incorrect address not even in the same city as me, then today when it finally got here it was the WRONG package. I have spent the whole afternoon on the phone bouncing between departments and they aren't even able to find my order on their system now. So they want me to send back the wrong package so we can start the process all over again, however they have already disconnected my old sim which means I will be without a phone until they process a new order which takes a week. They can't even give a reference number for the calls that I make to the customer service centre because apparently they use the order number as a reference, which they can't find. So now I have a wrong phone and apparently it is impossible to get any assistance to fix it where I don't have to go without a phone for a week. Pathetic.