Commands:
!help, lists all available commands.
!stock, easy way to see bots pure stock.
!price, !price "item name" will show buy/sell price and stock limit for the item.
!buy, !buy "item name" sends you trade offer at bots prices.
!sell, !sell "amount" "item name" sends you trade offer at bots prices.

Your trade may have been declined for the following reasons:
You are marked on SteamRep or all-features banned on backpack.tf
Your inventory is private.
The trade will be held (escrow/tradeban)
The item you are trying to take is not priced / not from Team Fortress 2
You are not offering enough, try the !price command for the price of the item.