We use Individual Product Shipping costs on our oscommerce website.
I need a tweak doing so that when a customer orders multiple products only the Highest and Lowest shipping costs are combined.
So, if a customer orders 5 products each with a different shipping fee, the lowest shipping is added to the highest to create a total shipping cost - the 3 in the middle are not included.
Any questions just ask.
This is urgent and must be done within 24 hours.
PLEASE READ CAREFULLY
There is NO access to the website. I can provide all the files you need, but live access to the actual website is not possible for security reasons.
Payment in full upon completion. As long as I can see it working I'm happy.