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!!!
leog2015
Post removed 
I don’t recall anyone going up a whole number in fuse rating. Especially if the fuse rating was a low number. That would be taking an unnecessary risk. 


Post removed 
Yeah, but ordinarily people increase the value by only .25A or maybe .5A not a full Amp. But maybe someone somewhere has, who knows? The other thing is no one seems to know exactly WHY the aftermarket fuses blow. I also recall even stock fuses blow prematurely so who knows?