I have site here. http://ledking.in
I want to take a help to develop extra fee module. I have added classes and everything and extra fee is applying on cart total.
Now i want to use checkbox on Extra fee row line. If customer un tick checkbox then Extra fee will be removed and if customer tick again then Extra fee will be adding again to grand total.
Can you please help me here to how can i achieve checkbox tick and untick process.
Thanks in advance.