Tried the celcom prepaid during cny. The internet is inconsistent and speed is really slow intermittently. It also switch from 4G to 3G when moving around which i never encounter with digi.
Can see the huge difference with digi ( current main line) and first time using celcom and consider to port in but after two weeks trial makes me consider again.
Using it in johor area.

Whole malaysia celcom effected ? Mine since 3pm just now until now still on and off the data. At first thought my phone problematic