Context: It ended up costing me $ 30 to pick up three boxes which were already paid for in the u.s . ezra was amazed and i was somewhat angry . that they charged and that much . he said that if i have anymore sent to not send them through the postal service but to send them through DHL .

Question: What might the excess charge have been for ?
Options:
0. None of the above choices .
1. Customs duties
2. Parcel did not not contain what was promised
3. Parcel was over stated   weight
Answer: 1