Audio Horizons fuses.... won’t buy them again...


I’ve bought 5 Audio Horizons Platinum fuses a couple of months ago, for my amps, speakers and DAC.
Three days ago, coincidentially, the 5A fuses on my mono amps (Rogue Apollos), blew at the same time on start up. Replaced them with the OEM fuses, and everything works again.
I have a very good electrical installation, with independent lines for each amp, a no surges or anything strange occurred. My speakers, Evolution Acoustics MM3s are always ON, and nothing happened to the fuses on them.
I emailed Joseph Chow inmediately and his response was to send the fuses back to him (at my cost, I live in Ecuador...), to repair them for $70/each, plus shipping.
I have paid $138 for each fuse in October, and no warranty?... what a shame!!!
Won’t buy these fuses again, NEVER!!!
128x128leog2015
Uh, the clock starts ticking from the time you get the fuses, not when they’re shipped. Hel-loo!
By the way, the OEM fuses are working perfectly.
If it ain't broke, don't fix it!

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Are these fuses UL listed? If not, you may be risking more than just a couple of nice sounding, but expensive, fuses. 
I'm with you Viridian. A fuse has a designed purpose. If it is doing anything less than that, faulty design for example what exactly is the point, improved sound at the possible risk of equipment damage?