It is possible to add multiple bundles to an eSIM. Just follow the steps listed in this article.
1. The eSIM must be created first. For more information on this step an article called
"How to Buy An eSIM" has been listed below:
2. Once the eSIM has been created, you can now add multiple bundles to it. This is the same process as "Topping Up An eSIM", the article for which has been listed below: