This is annoying. I went to the mentioned address:

"The easiest way is drop it in CESK. If you come from Ramada Traffic light towards Qatar Decoration roundabout then you turn right. Make 'u turn' to Al Waab traffic light .... CESK would be in your right hand side. Just opposite Doha College."

I arrived at 5 pm, and I saw nothing called CESK, I kept looking and then left the area. This sucks. I won't come again.