Stop-Limit orders filled different than expected

So this week I've set a few stop-limit sell orders and all of them executed in a way I didn't want them to. I wanted them to work as stop-loss at a fixed price once price gets to a certain point above that fixed price.

Example:

Coin is at is at 0.21. I set the order as such:

Stop: 0.2220
Limit: 0.2041

I want the order to be added to the order book only if price reaches the Stop; and if so, then execute the order only if the price reaches the limit.

Instead the order was filled almost instantly once the price it the stop, way above my limit.
It ended up being filled at 0.2217.

What am I doing wrong? Is there a way to set orders as I intended? I mean, to actually have a stop-loss with a pre-set triggered.

Because this way I've sold coins at prices I didn't want to sell :(