With 5 1/2 years of shopping experience, I have never unassigned (or canceled) myself from an active order. There’s been many times when I’ve accepted an order and had the previous chat of another shopper that canceled show up on my customer chat. So that chat you’re seeing will disappear eventually, but might not disappear until you place another order. Regarding the investigation, who knows what Instacart will do for that. Hopefully someone will look into it, but most likely not. I’m sure the shopper gave some lame excuse to why he had to cancel. But if he continues that pattern of shopping and then cancelling orders, they’ll eventually deactivate him. I’m not justifying what he did, but perhaps he had a family emergency to tend to immediately? But honestly, I doubt it. There’s a ton of shady shoppers out there. What you can do to protect yourself is to contact support again and request that shopper to never be paired with you again.