I will be traveling overseas in a few weeks and im currently on P70. Umobile has this "data backpack" roaming thing. I called the cs and they said i can utilize my internet quota, in my case 15Gb while overseas provided i use the carrier on their website.

Anyone has any experience with this? Im afraid i'll get billed 4 digits. and yes, Im aware of buying local sim. Thank you.

Also, does the rm300 credit limit apply for roaming? If anything goes more than that, the line should be barred.