None of our numbers allow texting to numbers outside of the US, Canada or the UK. Numbers based in the UK cannot receive text messages sent from outside of the UK. Some third party services do not consistently or reliably work with certain phone numbers. If you're trying to test, using Google Voice has been found to be one of the most consistently reliable services. We do not offer refunds for issues that are due to third party services being incompatible when the problem is not at our end.