Maybe you shouldn’t blame the dry cleaners. I think I know what happened to your suit. Was it a sweet, sickly, musky kind of odour? Repellent but not rancid? Rank but not acidic?
Difficult to wash out, etc, etc.
The answer is: the Minion pissed on it!!!!!!!!!
If it was left flat in Tan’s old room, the mystery is solved. She pissed on our duvet in there and sundry other things.
She’s now an outdoor cat.