False advertising

I ordered a top online. I received it, but it was long sleeved instead of short sleeved I very rarely wear long sleeved. However I assumed it was my error and as the top was nice I kept it. Looking online again several weeks later I saw the advertised top is indeed short sleeved, there is no long sleeved option. I tried to contact miladys via what's app, but got various options of complaint from the bot, none of which app**** to mine. I still put in the complaint but the bot of course didn't register it. So again no recourse. I don't want to return it, it's too late now anyway, but I need to lodge the complaint of false advertising. Miladys is notoriously difficult to contact.