yes, my UOX will expired few weeks after my 26th birthday.
no, your digi credit will not be transfer to celcom.. because u pay your money to digi, so digi must give you service.. you cannot request celcom to provide service to you for any RM that you paid to digi..
and, it is imposible to ask digi to return your money and give it to celcom since it should be their revenue, why need to return it, furthermore to give it to their competitor
there is no credit expired for UOX, since all your credit is valid at anytime until your UOX number expired (when you reach 26). so, no need to worry

however, to enjoy this special credit validity, you need to verify your myKad at any celcom branches.. otherwise, you will get normal validity (as normal xpax users enjoy)
Ic, that's great. Will finish my digi credit asap and port to Celcom UOX.
Thanks for the info.