Just want to give a shout out to pinbits.com.
I ordered a TZ gumball LED kit (which is a mandatory mod in my opinion, now it's in) and finally installed it a few months after it arrived. One of the white LEDs (out of 4) didn't work. It still gives a good amount of light due to the brightness of the LEDs. Anyway I contacted Pam at pinbits and 4 days later a new board arrives in Australia. Wow.
Not only is the quality of their stuff amazing (I have their IJ lighting mods), their customer service based on this (and prior dealings as well) is absolutely top notch.