just do a min reload of RM10 before the end of the year and as long as you keep the number active then you'll get 1gb monthly.

Catch:
1. You need to reload min of RM10 before the end of this year to activate the 1gb monthly
2. You need to reload RM30/RM31 to use the 1gb free data
3. If your usage below or around 1gb, and you can't make that much of calls and sms(30 ringgit per month), then your credits will keep stack up because there's pretty much no way to use your credit apart from subscribing for more data

1st question, yeap. 2nd question, next year see what will the telcos do

once activated, the 1gb is there every month

but you need to be active by topping up to use it

maximum inactive is 60 days