instagram account banned after boosting one post — normal?

I boosted a post on Instagram using my business account and the account got banned immediately. The post was totally compliant my friend — just a product photo with a caption.

Is this normal or did I trigger something?

How old was the account?

About 3 weeks old. I warmed it up with organic posts for 2 weeks before boosting.

Three weeks is not warmed up. Instagram expects organic engagement before you spend money. Boosting on a fresh account is exactly what spammy accounts do.

The minimum warming period I use is 2 months before any paid activity. You need:

1. Consistent posting schedule
2. Organic engagement from real followers
3. No bot-like activity patterns

Boosting triggers review, and a 3-week-old account fails that review.

boosting a fresh account is asking for it