if you don't accept my suggestion, we couldn't but to repeat your process to the shipper as what has been doing so far.
we don't need your promise. if you're expert for logistics at your end, you can be enough to give such kind of estimation
through any advice of your networks and connection.
we also have been doing at our end.
if we have customers the same as this case from you, we would say the estimation confidently through our networks with customs
without any fear of difference.
may you doubt of acceptance on this cargo to your end?
we expect your consideration the way we suggested again