When you create a shipment, you specify a weight (and dimensions) that matches the weight/dimensions of your parcel.
If the carrier registers that the weight/dimensions of the parcel are higher than the weight/dimensions you have specified, a price difference up to the correct weight will be charged to your Shipmondo account.
No extra fee will be charged, just the difference in price between the booked and the actual weight of the parcel.
Note! Some carriers invoice based on either the physical weight of the parcel or it's dimensional weight, whichever one is higher.
You are welcome to contact us, should you disagree with the carrier’s weighing.