[2023] Not sure where to post this but I want a refund cheers

Hi Ubisoft guys

I spent 30 quid last week on WONY but the game is broken on a fundamental level. Constant freezing and some missions are simply unplayable due to lag, notably Camp White Oak. (in a single player mission?!) Can't farm my gear which is unacceptable in a game I bought to farm gear.

So, someone please advise how I can get this expansion refunded ASAP.