Question: how to check data usage on cell c router?
Answer: Cell C Mobile App > Check balances on the home screen.
Self-Service IVR > Dial 135; option 1 for "Manage"; option 1 for "View Remaining Balance and Usage".
USSD > Dial *101# OR Dial *147#; option 2.
Call 136 > Dial 136; option 0 for "Balance Enquiry".