I'm developing a linear model but it doesn't work correclty. 

The model seeks to minimize the total cost resulting from the storage process (storage, transport and handling).  

Brief expalnation about the process: Each product should exist in one picking area (index of the picking area 1 or 2 or 3) and as these areas cannot contain all the incoming quantity of each product, so the rest of the quantity should be allocated in one of the reserve area (index 4 or 5). 

(Note: For a given product should exist in one picking area and if the condition of allocating in the reserve area is satisfied it could also be assigned in one reserve area). 

Lij: is a continuous decision variable that mean the number of lane of storage of product i assigned to the storage area j. 

In order to satisfy the constraint that deals with the restriction mentioned above, I formulated the idea using "If. .Then constraint in MIP" where I added the binary variable zij. (In the first model where I considered just the three picking area it works exactly but when I have added the reverse area I didn't get the good result. 

To explain, for example if we consider the first product (i=1) ( see figure 1) , just were are L12=8 and we find for z12, z14 and z15 equal to 1 ( in figure 2), which is not logic for the last two valued beause there value assigned to L14 and L15 are zero (Same problem for the other product). 

Figure 1: 

Figure 2: 

Other problem is that in each picking area should contain different product but the program assigns only ( area 2 and 3) and unfortunately not  in area 1. Because the allocation of product the reserve area is based on the amount of product assigned in picking area 1 as if they reach a certain limit they, the qunatity that exceed this limit will be assigned in the reserve area. Also, I formulated this refers to the "if.. the constraint in MIP" were I've added the binary variable wij. But I found that the wij take the value 1 even if the condition is not holds ( how can I make the condition for assigning in the reserve area holds ).  ( Figure 3) 
Figure 3: 

Any help, please. I didn't understand from any instruction comes the problem. 

I've attached also the model if needed. 

* The last question:  Is there any instruction which enables to get those results in excel file ?

Thank you in advance.

Regards,