I just demolished and built a new house but im still using the single phase for the construction..im going to start my wiring work today..im going to place the meter outside near the tnb pole and do 3 phase wiring works..do i have to submit any documents when applying to 3 phase upgrade at tnb?

i paid 600 for application and submission

already received approval from tnb

need to pay RM1600 deposit for them install new metre