How can I added an Inovice to a two same Trade Operation Charge Lines but with a different value?

Summary:

The business have a case that in the trade operation has two Landed Cost Charges with the same Charge Name, Supplier and Supplier Site but this has one has a different thing that is the value.

We did the invoice with only one value (one line) that is the total of this two Charges, when we tried to associated the Invoice with the Trade Operation the Trade Operation Charge Lines thas two status: first one Rejected and the next one Deleted.

So, if we associated one of the Trade Operation Charge Lines, we can't associated the other Trade Operation Charge Line, and we need to associated both Trade Operation Charge Lines of only one invoice because the invoice need to have only one value.