Using sub-brand carriers

Using sub-brand carriers
https://www.egmobile.co.kr

If your smartphone contract ended, why don't you move to one of sub-brand carriers? I'm using a sub-brand carrier.

I was originally using SK Telecom, but after the smartphone contract ended, I moved to EG Mobile, a reseller of KT network. I'm using EG Smart 70 that provide me 200 minutes of voice, 300 MB of data, 100 messages are provided as a standard service.

The picture below shows that I've paid for my phone bill for recent six months.
20160629_알뜰폰통신사이용하기.png
If you pay unnecessarily much money for the phone bill you can move to a sub-brand carrier and save some money. I recommend you to buy stocks with the saved money :)