Error 400 – Client is unknown, you appear to have invalid credentials / Your account is out of data, please purchase data to top up your balance

Option 1: Change to our NEW SSP, Superchoice, at no cost.
Read here

or

Option 2: Stay with our previous SSP, Ozedi and purchase more data.

1. Click Tax > STP > STP Customer Dashboard
2. Enter your Username and password then click Sign In.
3. Select the Account you require.
4. Click BUY DATA.
5. Follow all prompts as displayed