Device not delivered on promised date

Last week I upgraded my contract over the phone and I was told that my device would be delivered by today Monday 14/03/2016 to my address in Standerton , also a confirmation call and SMS from UTI was received . Today after waiting almost the whole day with no contact from UTI I decided to track the parcel and I was told that It has been misrouted to the Middleburg branch and it will have to be sent to Newcastle overnight and I might receive it on tomorrow or Wednesday. I believe that this is pathetic service , on that I had to track the parcel before arrangements were made to fix the error. Had I not contacted them my parcel would be still sitiing in a wrong branch for another day. Please help me by ensuring that your service provider delivers my parcel latest tomorrow afternoon or I will cancel the transaction. The reference number for the parcel is OF*** .