Contact them, explain the situation and pray for them to help you.
LOL, I see the ChipMixer team is on the case. Yeah, this happened to me lately, in my advanced wisdom I sent ETH to an ETH token deposit address. You are basically at the mercy of the exchange with stuff like this; be polite, but don't be too persistent. this will most likely take a while, as they put up a warning against this on every exchange I have ever used.
Some takeways:
Always double check that addy.
Turn off autocomplete
Always double check that addy!