Debits differ from invoice.

Email correspondence sent to inform of Porting fees in December being around R400, company was informed not to debit as yet as we signed for R99. Invoice was sent for R187 but debit was done for R1089. This now has another R400 added on top without any explanation. An invoice is to include and match the debit, if you state an amount that is what you need to debit, its your duty to include all amounts to be deducted, this was not included on the invoice. We receive monthly invoices but the total invoice amount on the first page gives a breakdown of all charges and matches the debit. Suddenly the company chooses to mask costs and excuses the lack of communication with a sorry. There needs to be communication and transparency.