This happens when an Item is bought by someone else before you from xingwang's blog

Once you’ve found the item you want, at a price you like, you’ll have to select the option to buy it, choose your quantity EFT Roubles and hit yes. If you’ve gone for a cheap deal then most likely, the offer will not be available.

 This happens when an Item is bought by someone else before you get a chance to complete the trade. This happens with low price items a lot, or items in high demand. In general, you may have to search for a slightly more expensive option to make sure you get what you want, or keep trying your luck with the bargain options and hope you get lucky.

Just be careful when buying armour www.lolga.com or medical supplies: you’ll always wa