If you availed of your mySUPERPLAN plan as "line only"/without handset, yes, you will be allowed to change your plan to myLIFESTYLE Plan.
However, if you availed of your mySUPERPLAN with a handset, you can no longer change your plan. The handset you availed was computed based on the plan that you got. If you really wish to change to myLIFESTYLE Plan, you will have to pay for the pre-termination fee.
For clarification , please call 027301300 and inquire about. There has been conflicting infos regarding this lateral transfer.