MTN MyContract Portal issues and dysfunctional help line.

The MyContract portal of MTN no longer allows me to log in - claiming my credentials are wrong but the help number given being *** are no longer in operation, a voice just indicates that it is a wrong number. Other help numbers such as 083 135 does not offer assistance on this portal. We cannot manage the many MTN devices for our company without this facility. I suspect we are being ****med - but MTN has no useful customer service facilities any more. Even help facilities that one find on the internet for MTN are mostly **** sites. I used to be able to see our accounts also on my mobile phone on an MTN app but now it is limited to my personal device only. Not a good show MTN.