hai...i bought RM1yes 4g simcard on shopee..i hope want to use it on my spare galaxy s8 usa unlocked g955u1...anyone here know why i cant call anyone...i try to call this number using my digi number also cannot..operator say number not available...i check supported band on gsmarena and it did support yes 4g band...also when i pulled the notification it did show "YES Kasi Up"...usually if signal not supported it will show emergency calls only...????