Yes. Initially call up maxis customer service. Told them I want to move. If maxis offer me same speed and price I will stay. Customer service said can't offer you. The 100mbps package is only for new customer.

Proceed with transfer request. Walk into TM point and waited 2h just to get transfer request. I heard few people there doing the same thing as well. TM told me to transfer request done but got 10 days validity. Settle all maxis bill and go to maxis centre and being the transfer request paper/email. Then tell maxis you want to transfer out. Up to maxis to approve the transfer out.

So did what TM told me to do. Settle all bill, went to maxis centre. They call some 1800 number and lady over the phone asked me reason for moving. Told them doesn't make sense for me to pay same price to maxis for lower speed. She told me, we will match unifi speed and price. No need to transfer out. Everything remain the same. No need for installation, no new bill, payment all same as before. Only no new modem. I told her your customer service said cannot counter TM offer. She told me I can do it. So took up her offer.
No need sign new contract unless I want new modem. Same speed and price as unifi. Guess maxis losing too many customers

So let's see next billing cycle what's the price. If maxis keep their word.