I have the RM5 vouchers too, it appeared automatically

If you are new user, you need to spend first, then they will reward you with monthly vouchers.

You can also try your luck with daily spin to get vouchers.

Yes you can, with 2% carousell protection fee

Find seller with carousell protection

Fee is 2%, can use grabpay, you click received when the payment is reflected in your mytnb app.

No wo, few days ago, I bought and still have grab points

You pay to shopee with your cc, earn perks

If pay tnb, considered utilities