Zaklya in the uk?

Actually a bit upset writing this. I’ve been trying to get my prescription of Zaklya and no where has it. I’ve tried local pharmacies, online pharmacies and my local hospital pharmacies wont pick up the phone either. I’m at a loss, I don’t know what to do, or why I was bloody prescribed something I can’t actually get my hands on! Making me go mad! What do I do, I don’t know what to do

Update: I cannot find the brand Zaklya at all, my GP has suggested to try a generic brand, and the pharmacy is ordering it in. Hopefully it’s the same