I found Phosphate Cascade Pacs..
In the UK, Cascade (sister brand) is called "Fairy" and there pretty much exactly the same packaging as our Complete & Dawn Pacs.
There "Complete Pacs" (Yellow & Blue Swirl) is called Platinum.
Anyway.. if you loved the old phosphate powered pacs (like I did) you can find them online. Just avoid the "UK Ariel". It's Phosphate free and is far from comparable to the Mexican Version.
Now.. if I could just find Mexican Phosphate Powered, Mr Clean ;)