BTW did you asked them (ARAMEX) for detailed Customs Clearing costs related to your stuff.

They should provide you with that so you can exactly know what you were charged for and why you were charged.

Recently a group of friends bought some electronic on the internet and brough them via Aramex, but since the total cost of the goods was exceeding 2000 QAR then they had to pay for customs clearing.

Just check with them on clarification and ask them for full details on this.

Regards!!