I used chipmixer a few days ago and I got tricked, after sending my coins I got 3 small chips with the promise of merging them to get a big chip but the merging button wasn't working then I had to pay fees 3 times with one time of my main deposit, literally I lost 20% of my coins just paying fees. lol
Hmm, Chipmixer definitely didn't do this on purpose. It is likely a bug of some kind. I haven't yet tested out the new site after it got a makeover but i can't see anyone else complaining about this issue, so it could be something on your end as well.
Either way, please contact chipmixer support. They'll probably refund you the difference in fees because it's a small amount involved here. As you know bitcoin miner fees are quite high and you can't really blame chipmixer for it.
Hopefully your next coin mixing experience will be somewhat better.