o2 are changing the following;

[GOOD]
Voicemail pricing for Pay as you Go customers will change from 10p per minute to 10p flat rate for access to the service. Regardless of how long your messages are, you will be charged just 10p.

[BAD]
The price for text messages will increase from 10p to 12p per message for non-Talkalot customers. This will not affect any free monthly text allowance you may have. Texts on the Talkalot plan will remain at 10p. To change to the Talkalot price plan text ONTALK to 21300 and we'll switch your account to Online Talkalot on your anniversary date. Texts are charged at the standard rate