No invoice No payment

I have requested Vodacom to post my invoices over 6 months ago and not one received. (i have receive other post from other companies so its not the post office!!). i've been told by vodacom to driver to their office or store and have one printed. Well not driving around just for an invoice.. i want it posted.<br> My main reason is PROOF OF RESIDENCE!!! and no getting my landlord to write a new lease aggreement up every 3 months aint happening.<br> My account is R1600.00 a month i have paid it but will not anymore till i receive an invoice posted to my address.<br> I did call and make sure that the address has been updated.<br>