Aramex Couriers — Weight dispute

Hello Team,
I used to send parcel through Aramex with the help of shyplite.
I put the weight accurate and pay them for the actual weight.
But the last of month the send me bills for just double weight .
They never intimate us about the weight.
we have sent them mails for proofs of weight but they did not send a single proof.

Kindly help about this matter.
My number- [protected]