Ok Afriman so you wanted evidence to substantiate what we are experience, well here it is. This ties in with what I have said before (either MTN limiting Afrihost to a certain amount of users or IP addresses on LTE or a policy at MTN on EPC and PCRF limiting new connections to LTE.
So this morning I was connected to LTE, had an IP address and all was working fine with LTE on the Afrihost APN at 07:16 this morning:

And you can see I have IP address 105.208.156.176 on LTE (Afrihost APN)

I then enable airplane mode and wait a minute, disable airplane mode and the problem is reproduced. The new LTE connection is not allowed by MTN - you can see there is no IP address even though I pressed reload to manually reload ip address

Next I change to mymtn APN and I get an IP address on mymtn LTE
As you can see, the IP address on mymtn LTE is 197.78.188.150
You now have the information you needed, kindly supply us with a MTN case number regarding this matter. I have noticed this problem is quite bad in the mornings ANYWHERE in South Africa. It is NOT coverage related because MTN LTE works perfectly while Afrihost LTE refuses to connect - in fact Im 99% sure Afrihost is being limited to the amount of simultaneous LTE sessions.
If Afrihost refuses to investigate then perhaps we should urge mybroadband to do their own independent tests and write a front page article about this issue ?