First of all, check if your phone has eSIM support (visit link to check). Then, download the COSMOSIM application from Google Play or App Store and select the desired internet package in the application – regional or local (regional includes a group of countries close to each other), where the purchased package will provide you with uninterrupted high-speed internet from COSMOSIM. Packages are active for a different period of time, from 1 week to 1 month, until the megabytes are exhausted.