I am also having the same issue.
The issue the freight calculation is having is that it sets up each part as an individual shipment.
So, using this same address, shipping 1 phone UPS Ground calculates at $8.18 which is basically correct.
However, shipping 2 phones it calculates at double. $16.36 which is way off. Adding a 3rd phone makes it triple, $24.54. So the more product you add – the further off the freight amount becomes.
Actual shipping charges for 1 phone would be $10.86 (our computer adds a handling charge which is not necessary on the website). 2 phones would be $11.70. So, 2 phones is barely more than 1 phone. Not double, then triple, then quadruple, etc
