• A 1p/min night and early bird (9pm to 11pm and 5am to 7am) tariff for Vodafone to Vodafone calls if a subscriber spends 50p during the day
• A 3.9p/min tariff for all weekend Vodafone to Vodafone calls if a subscriber spends ¢2.50 during the week (Monday to Friday)
• An 8.9p/min flat tariff to any network, anytime, any day

This is an on-going offer 

There is no fee to sign up for 138 

By dialing 8080. A congratulatory voice message will be played to inform subscribers of a successful subscription. If, for some reason, the subscription is not successful, subscribers will be informed by a voice message.

All Vodafone prepaid mobile voice subscribers except subscribers who are signed on to Red League and other corporate closed-user groups (CUGs).

Subscribers will get to enjoy the 1p/min tariff when they spend 50p during the day from 7am to 9pm. Voice out-going calls, SMS and browsing will be counted as spend to qualify for the 1p/min tariff. Unit transfer is not counted as spend under this offer
Subscribers will receive an SMS notification when they have unlocked the 1p/min tariff.

When a subscriber spends 50p during the day from 7am to 9pm, they will enjoy the 1p/min tariff for their Vodafone to Vodafone calls from 9pm to 11pm that day and from 5am to 7am the next day.
Example: If a subscriber uses 50p between 7am and 9pm on Monday, they will enjoy the 1p/min tariff for their Vodafone to Vodafone calls from 9pm to 11pm on Monday and between 5am and 7am, Tuesday morning.

Subscribers will get to enjoy the 3.9p/min weekend Vodafone to Vodafone tariff when they spend ¢2.50 during the week (Monday to Friday, all day and night). Voice out-going calls, SMS and browsing will be counted as spend to qualify for the 3.9p/min tariff. Unit transfer is not counted as spend under this offer
Subscribers will receive an SMS notification when they have unlocked the 3.9p/min tariff.

When a subscriber spends ¢2.50 during the week from Monday to Friday, they will enjoy the 3.9p/min Vodafone to Vodafone tariff during the weekend from 5am, Saturday to 11pm, Sunday.

If a subscriber is eligible for both the 1p/min tariff and the 3.9p/min tariff based on their spend, the 1p/min tariff will be applied for their Vodafone to Vodafone calls.