Confused and frustrated customer

I was called by a consultant to offer me a cell phone contract and I opted for it. I'm so confused by how everything is being done. Firstly my debit order date is wrong and I was advised by another lady this morning that the contract she sees on the system is for a Huawei and not a Samsung A11, she then transferred me to another lady who confirmed it was a Samsung A11. I did not agree to any contract for a Huawei. I specifically told the lady that I want one for a Samsung A11. I have been calling and sending emails to rectify the issue with the debit date and the debit amount but I still haven't been assisted. I call the call Centre a few times but could not get an available consultant to assist. They keep telling me to wait until I receive the phone so I can correct this. I also would like to know why I had to approve a debit order if the contract has not been approved yet. The amount that I was advised of over the phone for the Samsung A11 is not the same amount that was sent to be debited from my account. Please rectify this. I'm very frustrated by this