Too complicated

I have been working with them for a few months and so far I am very discouraged. First they have so many complicated rule to start with then they put you under constant threat to take money from you. I enter on their software the amount of total unit I am sending and the amount of handling pack. Those 2 info clearly indicate how many unit per pack but no they want to take money because the number is not on the pack. What a still. Margin are calculated in advance we can not afford to have Money taken as shipmonk is pleased. I do not recommend this company unfortunately I have to go on another hunt for a warehouse who is not going to put me under constant threat to reduce my margin.