You're dealing with a classic mismatch: selling a premium product like GOTS-certified toddler clothes (with order values around £7k-£24k) through Instagram influencers who usually promote fast fashion or toys at a fraction of that price.
Think of it this way: you wouldn't try to sell a luxury car through a marketplace for used bicycles. The influencer pool you've been tapping is probably full of people whose audience isn't ready to drop that kind of money on children's clothing. That 10% commission sounds generous, but the conversion just isn't there if the fit isn't right.
What I'd suggest instead: look for affiliate platforms that specialise in high-ticket, ethical baby and kids' products-places like ShareASale's Premium channels, or even niche networks like Awin's luxury vertical. You might also reach out to parent bloggers or membership groups focused on organic, sustainable living. Those audiences already trust the ethos, so the price point feels justified rather than shocking.
Your boss won't kill you-just show them you're pivoting to where the real buyers are, not chasing viral clips.