Hi, need more detail for MNP, power prepaid, top up validity and UMI 20.

Want to MNP from DIGI to Umobile and activate 4G. How long it takes and how do i do it?
Planning to get power prepaid and top up RM100 for 5 month usage. Do i get 200 days validity from RM100 top up?
After that i will subscribe to UMI 20. So my internet quota will be (1gb+2gb+1.5gb) every month?
How long is UMI free 1gb promo last?

Thanks.