Saying "Call Joe Bloggs" doesn't work on Huawei Y330
First, check the settings under Google Now. Open "Phone Search" and check if "Contacts" is ticked. If it is not, then tick it and it should work. If it is, head to Settings and Application Manager. Get to Google App and uninstall updates. Get back to the Play Store and reinstall all updates. It should work. If all else fails and he hasn't much data on the phone, back up and format it. Good luck and thank you for the bounty.