Misleading advertising

When Lovisa send out their mailers, the main pic is of jewellery. I can't tell you how many times I've tried to purchase what they show in their mailer. I send emails requesting where I can find these items, only to be told they do not sell those goods. Then why advertise them? Misleading advertising, if you ask me. I think I'll be taking this up with the relevant advertising authority. Any bets as to whether I get a reply from Lovisa??