I think 0,29 isn't unreasonable. Average text price is 22-25 eurocents here.
This is ridiculous of course. Set price below the price of the price you buy for. Get real.
Here you can get unlimited texts for £10/month. An international sim allows you to text internationally for 2-5p per text dependent on nation and thats a consumer sim. And I just quoted a business that charges those same prices.. what you're selling here really is the ability to send texts via the internet so you should build an API.
We might do happy hours, but we won't do much about price at this time. It's a worldwide service with a set price no matter where you send a text. We will add features to enhance the service in the near future.
Well then I don't know why anyone would use you, if there is considerably cheaper elsewhere.