Dun be speechless.. I have been using Celcom and tied to 2 years contract, even made complaint to their support and their support just reply they were not able to improve the signal..

Fyi, I signed up Celcom due to widest coverage and also I did a coverage map survey before signing up, the coverage map shows that my hse area with 3G HSPA+ coverage, but what I get is only merely 1 to 2 bars of 3G network and always not able to send out SMS or receive any.. Call always not connected, and dun mention the ability to surf internet..
And I did switch to 2G to make some call and send SMS also getting 1 or 2 bars, it is even worse than 3G network in my area..

Yea, it is really frustrating.. I have been tahan for like 2 years now.. This month is the end of contract, I will definitely go for UMobile since UM is the only operator with full bar H+ and 4G LTE in my house area..      Even Maxis signal just so so, DiGi and Celcom not reliable in my area..