Bad Service

Hi good day I am very dissatisfied with what has happened to me with an upgrade of one of my lines. I did an upgrade online on Saturday and on Sunday I messaged them to cancel the upgrade and come this morning Monday the contract is upgraded with no call or anything regarding the mail I sent just a reply to say they will get back to me in 24-48 hrs. I would have wanted to upgrade my phone in store as I know it takes 3-4 for delivery and I might not be in Cape Town when they do delivery that is why i opted to cancel and go in store to upgrade. Everywhere I am calling for this mess can't help me resolve it as I spoke to someone at MTN now who advised me it was done in Gauteng but she can't supply me with the number as she does not have it so that is it I am stuck just there currently with no solution to my problem