Even if you have subscribed to the cheapest mobile phone service, these best practices prevent you from paying hefty charges. Firstly, contact your service provider and inquire about the international roaming charges. Consider buying a local SIM upon arrival to a new country, that will significantly reduce your roaming charges.
Alternatively, you can use Wi-Fi networks for data-intensive tasks such as streaming, playing online games or automatically downloading updates. Utilizing messaging apps via Wi-Fi calling capabilities to stay connected without depending on traditional calls or texts. Finally, stay informed with your service provider about the international roaming charges. So, you will always stay on top of the limitations and additional fees on your international roaming.