The minimum limit for this mixer is 0.003 BTC, which is equal to $125.71 at current prices. It is a little high. I tried to mix and there is actually no warning about the minimum. Have you downloaded the letter of guarantee?
~snip~
The FAQ has very clear instructions on what the minimum amount is and the OP should have just read it - but these new generations think reading is a waste of time and then accuse someone of scamming them out of the entire $7

In addition, why would someone want to mix such a small amount - especially if we take into account that these days, in some moments, the fee for confirmation in the next block amounts to more than that amount. In other words, to refund such a small amount would mean that the mixer has to pay out of his own pocket because someone failed to read the FAQ.
What amounts do you accept for cleaning?
The minimum amount to clear is 0.003 BTC, the maximum is 50 BTC. If you need to clear a large amount, you can do it in several transactions, or contact the operator directly, we will definitely find a solution.