GrameenPhone Internet Modem!!! Only 1 month used!!!

I lived in village n there is no strong network of Internet of any operator except GrameenPhone. That's y I bought this GP modem. Bt,after one month of buying this modem,I ve permanently come Dhaka to stay. Here I can use faster Internet than GP. That's y I ve bought a Qubee modem. So,now I ve no need of my GP modem. That's y I want to sell it. I bought it by TK.2900,bt now,I'll sell it by TK.1800. The rate is fixed. If,u want to buy,then contact with me. My no: 01930677137