We don't know the sales for the 3rd week yet (the tracking week ended 2 days ago) but they should be around ~25k, so in total he sold ~91K copies so far with 20M AI.
Nick's singles have amazing longevity, both Jealous & Chains started worse on iTunes, Radio & Spotify.
Keep trying with those fake receipts.
Second week it was #43 on Digital Songs, between #37 Buy Me A Boat and #44 Like A Wrecking Ball which sold 33k and 28k.