FB MESSAGES Update?

Since DECEMBER, FB has updated their messaging campaigns targetting Europe and all my campaings maybe 10+ have wasted me above 1,500€ and 0 messages recieved on my facebook page.

Any thoughts?

Same problem here mate. Was selling at cost per conversion of € 0.50. Now it's more like € 100 with that fucking useless link clicks optimisation objective. Hope that this is only temporary. Worst time possible.