http://www.u.com.my/faqs/52/135?page=1



free calls from ANY purchased plans will be utilized first.

the free calls that comes pre-bundled in the new prepaid plan will always be utilized last, lowest priority. you didnt pay for it since it was given complimentary with the prepaid.

why behaving such? cuz they want to finish off whatever that you bought (e.g. UMI), so that you need to buy UMI again!

better choice, eh

i still cannot convince myself to consider maxis, at all. it's too expensive, compared to other telcos.

i'm now at postpaid u28 with umobile, and my monthly bill hardly go over rm30 

i just need the 1GB data exclusively; voice/sms is not important for me. i like voice/sms PAYU rate, meaning if i call more, i pay more. simple logic. if i dont use at all, at least i'm paying RM28/mo for 1GB data. dont think other telco has such low price for 1GB quota (easy peasy maintenance is a plus, hate those stupiak conditions).

being postpaid, i dont have to worry about topping up, watch my validity period.

i dont get promos/benefits that are offered with umobile prepaid, since there will always be T&Cs tied to it, and i couldnt be bothered much analyzing each single details 

i'm definitely NOT their prepaid target customers LOL! and they cant milk more money from me either!

yeah, i also mostly connected with wifi at home and majority is at workplace

yep, 6% tax must be imposed for postpaid.

U28 Postpaid + 6% (RM1.68) tax = RM29.68 hehe still <RM30 
oh btw, soon, all prepaid vouchers will face the dreaded 6% GST, again, for real this time. telcos cannot run away now since GST has been set for effective date of 1 April 2015.

hehe u can try to do it with me to enjoy extra discount