Hi. Im currently using 4g phone note 2 using 4g singtel line. I was wondering can i downgrade to 3g 12gb. is that possible? Now,presently, do they still have that plan 3g 12gb?
No, its not possible, because 12gb plans don't exist anymore, unless you stuck with the 3g 12gb plan, and didn't renew, or recontract.
If you find 2gb too little on your 4G plan, you can upgrade to get a higher quota, or sign up the datamore plan, so you get 1gb more per few dollars.