No worries, I sent my predator in a few years ago and haven't needed anything since. As I recall mine was the service fee for the standard orings and labor, plus ~$75 for a new face plate as the screw holes had cracked (apparently a common old age issue)I thought it was $125 now, but that includes a standard "service kit" - i.e. the normal O-rings and battery holder (depending on computer).
Regardless, yeah... DGX offers it - but they just send it to Dive-tronix (or have you send it straight there).
Divetronix may have raised their rates.