Text not sending after option

[AC Question]

Hi there,

I regularly text a local radio station and when I do I get an option stating it will cost me what ever extra..

The other day I forgot it did this and I'm guessing I accidentally hit the no button.

Now when ever I try to send a text to the station it fails?

I've tried deleting the msgs and deleting then regarding the contact no luck!

Any ideas? Thanks in advance!