I need to create new functionality if our customer is in the same mall area they tick the checkbox, then I want
1. remove the delivery charge from the cart
2. automatically add address expect for address line 1. (its done using jquery)
How to implement the functionality to remove the delivery charge or set delivery charge to zero??
I tried to create a ajax call creating new function in extensions/cartmodule/controllers/cartmodule.php
but its not working (server 500 error showing )
Any help is appreciated. Thanks