If you look at the "Contact Mizuno" page on the UK website HERE you will see there is a telephone number for UK & Europe - Only a few countries worldwide have email contact details?
If you believe you have faulty set and / or warranty issues with your clubs, you need to contact the retailer you bought them from in the first place
Good luck ... Paul
If you believe you have faulty set and / or warranty issues with your clubs, you need to contact the retailer you bought them from in the first place
Good luck ... Paul