Poloniex users should beware that some of us are experiencing a problem where Lending offers cannot be canceled. The offers can be taken up normally by margin traders borrowing funds, but if your interest rate is too high your funds will be trapped - you will not be able to cancel the offer.
In my case I have 179 LTC stuck at a max 5%/day offer (set by a bot so I would have a chance when it came off the prior loan to extract the funds to sell.) I and others have raised tickets with Polo support but so far there is no resolution to the issue being offered.
If you experience this issue please raise a ticket with Polo support and let us know here. Perhaps we can figure out what is causing the problem.
In the meantime, please use extreme caution when lending - test regularly with small amounts and beware that if the problem strikes while you have funds offered at a high rate they may be stuck there a long while.
I have got this almost a year in lending and I can t get it out.... I am really annoyed