I'm looking to change from Maxis Postpaid to Hotlink Postpaid. However, I have a principal line and a supplementary line. Maxis says I cannot change to Hotlink Postpaid directly, but have to change to Hotlink Prepaid first, then to Postpaid. They said someone will call me on Monday to reconfirm. Is this normal? I remembered changing prepaid to postpaid can be done within the same day, but why the other way around takes time?