TextBuddy was created to make it easy for people to actually utilize the Webtext allowances providers gave them. In the last few weeks some providers (namely O2 and Vodafone) have begun making changes to their webtext pages in order to make it more difficult (but not impossible) for applications such as TextBuddy from operating. Unfortunately it’s just not worth trying to integrate with providers who don’t want you integrating with them.
If this move leaves you high and dry then perhaps something like Cabbage Texter will work instead?
Thanks for using TextBuddy!