bro wanna ask something about smartplan..

currently im using digi50 + rm30 supplementary.

1. if i upgrade to smartplan, my supplementary still there? and share the limit?

2. can i buy 2 phones ? or need 2 principle if wanna buy 2 phones ?

3. how do they charge my cc if i use auto debit ? full amount or month by month ?

4. for phone, they take cash or epp ?

thanks

ty bro, very fast and simple reply.