I have a number of open offers to buy and sell ZOC, which was delisted as of 0.9.4 for some reason. Need to have those offers canceled and the maker fees returned to me. Thanks!
It likely got delisted due to low volume, if that is the case.
Even though this is not a bug, you can try creating an issue on GitHub and maybe arbitrators return the fee.
There isn’t really a procedure as to what to do with open offers that payed the fee when the pair gets delisted. Since they are delised pretty much always for low volume, it doesn’t provide too much work to do it manually, but maybe there should be in future. I don’t know.