Invoices combined after requesting NOT TOO

I have three Vodacom contracts. When logging into my online account it only gives me a Combined Invoice for all 3 numbers, instead of individual invoices. The company I work for pay our cellphones but without any invoice on my specific number I cannot do so. I have requested Vodacom to email me separate invoices each month for my number but I still only receive combined invoices for all 3 numbers. I CANNOT submit an invoice with the total being for all 3 numbers I have with Vodacom. I need my invoice for my number ALONE! How hard can this possibly be. This has been going on since October last year and still I struggle. This is ridiculous! PLEASE FIX THIS! I need my individual invoices as a matter of urgency!