Upgrading to Starhub's new SIM only plan from Postpaid

1 year ago I wrote how tricky it was to migrate from M1:

One year in on a rolling contract (+20%), I was stunned to see a NEW SIM ONLY plan. Switching has its unique brand of confusion & anguish.

[dolbymkv]

I too signed up the 4g 3 sim only plan. The charges are shown as $42.50 then less 50% discount for the sim only plan. But gotta add $5.00 for caller ID. So mine is $26.50 monthly.