Mondo worst service ever, making MTN name very bad

I upgraded Tuesday 5 April 2022 at 8am, The MTN staff member put through the upgrade for vetting to Mondo, I received an sms that the vetting was put on hold pending documents. No list or contact details to send these files. I phoned on 5 April 2022 at 12:15 to figure out what is going on and they said that their systems is offline and I must phone back within an hour. I phoned back at 16:30 and their systems was still down. I phoned back on Wednesday 6 April 2022 at 09:44 and I was told the systems are still down. I then received an sms with the documents required and email address and whatsapp, I send an email and whatsapp and did not get a reply to say documents received. I then phoned at 16:00 again just to be told the systems are still down. I received another sms on 7 April 2022 at 12:21 saying the order is pending and documents is required (which I send through the day before on two platforms). I phoned again and this time I was told I did not go through to the mtn sales side I pressed the wrong numbers, I did not. I then phoned again and this time they lady said the systems is under maintenance (which is the same as the systems is down by the way). I have forwarded the same email with documents again to the *** email address