What is the my eService application, how does it work?

According to the introduction of CAT Telecom Public Co., Ltd., my eService is a Productivity app on the Android platform. There is currently a 1.1.5 version released on Aug 09, 2017, you can see the details below.

my eService Version 1.1.2 is service management application for ‘my 3G’ network operator. We concern in your convenience to get our information, promotion and news anytime.

‘my eService’ has feature by following :

Profile
History usage
Top up
Balance transfer
Online payment
Change package
Add / remove service
News and promotion
Contact us / Maps / Chat / Call center / e-mail
On / Off 3G

‘my eService’ Usage : Require registration.
Compatibility: Require Android 4.1 (Jelly bean) or later
Connection: 3G/EDGE/GPRS or Wi-Fi

What's new in version 1.1.5 version 1.1.2
1. Minor Bug fixed