I made a maximum bid of £205 on an item that sold for 138.51 and here on bidslammer it says I won, but on my ebay account nothing shows up, there is no sign that I won. Although the last bid was a wholly new person to the bidding. So did I win or not? How can I tell?

Hello Robin,
Thank you for your question about this item. On your Completed tab, BidSlammer shows that you did not win this item because your authorization was invalid.
We hope we have resolved this to your satisfaction. Please advise if we can help with anything else.