Hi
we sell neon Lamp, we must create an additional packing box cost up to 4 neon , so if the customer buy 1 -2-3 or 4 neon lamps the program must add directly one extra box charge.
After 4 lamps, must do the same also for multiples, so if customer buy for example 6 lamps , the program must add 2 additional packing box cost.
Please let me know if someone has the solution?
tnx
Italo
www.ibrio.it