The agent on the call will clearly mention that:
- Everything in your existing package will stay, including 500mbps, 600 minutes free call
- New 24 months contract will start on the day the rm90 package activated
- Package will activate within 1 week from the call
- Everything in your existing package will stay even after the new contract period ends, including the new price
- You will get Disney+ Hotstar account and password access for 12 months. After 12 months, it will automatically terminate if you don't renew it. There is no automatic renewal. No need credit card info too.
- You cannot downgrade or terminate within contract period, otherwise penalty will impose
- You can upgrade or add add-on options at anytime, no penalty for upgrade

Then the agent will ask: adakah anda faham?
You have to answer: faham

SWU 5.0, which is a FAQ in this thread.