collecting tickets from Beijing

Hi, I am not quite sure about collecting tickets. First you say on your webside the only way to collect tickets is at the railway station, travel agency or airport then you answer people you can deliver tickets to the hotel. I need to buy two tickets from Beijing to Qingdao on the 6th of July. Can you deliver it to a hotel in Beijing? Are they valid tickets or e-tickets which I have to exchange in one of the previous ways? thx for an answer.