Sent an email to Vivifi. The reply was.Despite having, 100 GB of data, and 2 GB of data for MY roaming, Vivifi chose to deduct from the Roam 14 of 3 GB, which was meant for more countries.
Therefore, if one has the intention of visiting other countries, after MY. Then will be left with no more data, after the Roam 14, 3 GB data was being used up.
Read from the thread of ZYM, the deduction was from the 100 GB.
Currently there isn't any priority consumption on roaming packs and cannot choose. It will depends on our system, which one to use first.
I sincerely, hope they will change.......