Well, I tend to agree that it appears to be cast. I also agree that the best axes are forged.
I see some suspiciously similar looking items for sale on Etsy here in the US. Reviews are generally pretty good, though several reviewers point out that it appears to be cast. However, the Etsy seller claims these are hand forged, which is clearly not true and therefore a red flag.
I don’t know what you paid for yours, but for what they are selling for here, one could get a quality hatchet from the likes of Estwing or Fiskars.