im marwan saeed from egypt.i sent 4000usd to Hefei Disheng Information Technology Co., Ltd. to buy 4000 micro memory cards. i sent the money 20 days ago but no respond or reply till now.they arent a real company but they are a gang of theives.i was dealing with a girl called Ting and her boss Sarah.they deceived me.they are cheaters. i have attached my bank swift and their commercial invoice.