being charged for a full month service and having my phone for 1 day

we received our phone on 30/11/2017 and was advised that the contract amount would be R249.

We now received the account from Telkom advising that we owe R804

Please explain to me why I am paying the full contract amount for my phone for 1 day use and the phones weren't even active yet. And the excuse '' we cant remove it'' is not valid.

Then we were told that we have 1 gb of data per month and 10 gb free data per month for 3 months, Please confirm when this started as I assume it would start from 30/11/2017 for that one day use of the non active phones.

Please also immediately remove the 100 min off the account as this was not requested