E-billing site never works & no response from CC

for 3 months now I have to call MTN to request them to email me my data and mobile phone invoices as I'm never able to download and view the invoices directly from their stupid e-billing website. I've reported the matter before and was advised it was an outage which their technicians are aware of. But still till this day I can never open .PDF invoices downloaded from their site. When I call the call center, they e-mail me half the stuff I've requested and from thereon it's back and forth emails between myself & [Email Removed] tryting to get the rest of the stuff, of which they eventually choose to ignore me. It's irritating to have to call their *********** call center agents or email their customer care. I've just been on a call for 00:20:37 just to request 1 invoice for January and spoke to Ntheseng - call ***. This process is too painful! MTN must fix their stupid e-billing site once and for all