The Meridianbet USSD application is completely separate from the Meridianbet.co.tz website and mobile app.
To deposit funds into your USSD wallet, please enter business number 777111 with your mobile number as the reference.
You can create a Meridianbet online betting account in the Registration section.
USSD Jackpot Terms and Conditions
How to deposit money into your Meridianbet account using Airtel Money
You may only top up from your own TIGO Pesa account
Place your selection and pay for your ticket directly from Tigo Pesa