Hey there, magenta5471269! I hope you're having an awesome trip!
You can definitely Contact Us using the international roamer's number and initiate the request to Unlock your mobile wireless device. I'd recommend looking over those requirements first to make sure you're eligible! What type of phone do you have? I'm happy to give you an idea of the next steps if you're eligible and your unlock request is approved, but they vary depending on your device!
Just checking in here to see if you still needed help with unlocking your phone. Did you have any additional questions?