Broke spoke

I've broken spokes on three different wheels in my time, one when I crashed a MTB on a DH section, the second was a cheap rear wheel which had a dodgy rim and lastly my most recent wheelset, Novatec and H Plus. The annoying thing is on this last one it has happened twice: the first time I didn't notice until I saw the rear wheel was out of true, then I got it repaired (wheelbuilding is beyond me for the moment) and then very shortly after having it repaired I was cycling all a flat road, heard a ping and sure enough the spoke had broke again. Now I can't tell if it is the same spoke but its certainly the same wheel.

Now I'm wondering why this has happened twice when it is such a rare occurence. Twice in the same wheel says to me there is something wrong with the wheel build: should I be annoyed at they who repaired the wheel? Is it that the wheel simply isn't strong enough? Should I look to get the wheel fully re-built? Should I go back to the place I bought the wheels from and complain?

Asking for a friend

I had a similar issue with my MTB a few years back.

I have OCD when it comes to repairs, so I marked the spoke with electrical tape once repaired. 3 months later .PING. same spoke. Emailed Evan Cycles etc etc, they offered a free check on the wheel, they built I back up, rode the bike, 2 months later...PING. Same spoke.

I went directly to Mavic with the issue and told the whole story. They sent me a replacement while the original was sent off. They rebuilt, tested and got back a month later to say that they binned the original, let me keep the new one and said they would investigate. They put it down to an unknown fault in the drilling process.

These are handbuilt wheels, just at a lost with whether I should persevere with them. I'll email the chap who repaired them, see what he says.

If handbuilt the original wheelbuilder should repair this.

If two have gone replace all the spokes. Its fatigue more will go.