If Box cubic size larger than 0.02M3.
Shipping cost = box cubic size x RM500

Example of calculation

Box size = 20cm x 30cm x 35cm = 21000

21000 / 1000000 = 0.021M3

0.021M3 > 0.02M3

0.021 x RM500 = RM10.5

Shipping cost is RM10.5