I'm using v1.6, I've carefully configured shipping rates depending on order weight and country.
For example, for Mexico, the 1st pound, according to the values registered in the admin, must be USD 33.7, the additional pound, from 1 pound must be USD 5.6 until 21 pounds.
I'm making tests and one product that weights 4.8 pounds, when checking out the Shipping charge is only USD 26.88
I do not know the store where is getting that value, I deleted all shipping methods, and left configured only Weight order and Country.
Please help, I have worked a lot and never thought there would be something wrong with the shipping calculations.
does anyone has the same problem?