You can ask for Refill from another Vodafone number or your can refill your friends
To access mi2yu service dial *100# and follow instructions
Transfer an amount from 100vt to 2,000vt

Amount

50VT to 500VT

Transfer fee

2vt

Validity

7 Days

Amount

510VT to 2,000VT

Transfer fee

5vt

Validity

14 Days

Daily, weekly and monthly limitation applies