Has been using my digi prepaid as a spare for few years dy. Previously I subscribe SLL and after the expiration, will just top up once a while with minimum RM10 reload.

I just notice that my plan is digi best prepaid v1 and only able to subscribe RM5 for 30days plan. I have the option to upgrade to V3 or V4.

Can someone enlighten me what's the diff btw the V1 vs V3 vs V4?
Thanks.