AI Ads on Facebook & Instagram

Please don't waste your time or money. We have an ad spend of £100k monthly between meta & google so our account is pretty healthy. ENHENCER promised an uplift in ROAS and also to increase sales by "QUOTE: at least 25%" by week 6.
It is week 6 now and I have just cancelled the plan.
They had one campaign that was NEVER in the top 3 ROAS of existing campaigns.
Their spend was never over £150 per day.
Their "AI" is a less good version of META advanced shopping.