With this option the mobile phone user is charged Kes.10 for dialing the USSD for example when a mobile user dials *415# Kes. 10 is deducted from their airtime for that USSD session.
The USSD operator is charged per click for example when you dial *415# that is one click when you select option 1 that is another click and so forth until the end of the session.
The USSD is billed according to the total number of clicks per month. The higher the number of clicks the lower the charges.
Costs per Click