Yamaha DTXpress/DTXplorer/DTXtreme

Hi All,
My HH65 stopped working this week, after owning it for about 6
months. 
It looks like I will get a free replacement from Yamaha, but I am 
concerned about this happening again ouside the warranty period. I 
understand that It's going to wear, but I dont want to buy a new HH65 
each time, especially when its the Force Sensitive Resistor and the 
rubber pad above it thats wears out and the rest of the pedal is
fine. 
Is their an email or phone number to get hold of these repacement 
parts? I'm in the England UK. Thanks in advance.