Galfar Engineering and Contracting SAOG — Extraordinary service charges

Address: 100

An envelope was sent from Cochin through Blue Dart Express Limited vide tracking number [protected] on 21.11.15 to Sultanate of Oman and total weight below 50gms. They charged for sending document to Oman Ind. Rs.3028/=. Hence, please send me the criteria of service charges.