Brake problem, continous

[ollka]

I renewed my original front discs at ~80tkms whith OEM discs. After half a year they turned warped in few days in normal everyday CITY traffic. Got renewed under warranty. About half a year later same happened to them. Got renewed again this spring. Last week they got warped too, in one day!
All these faulty discs came from same production window/year and from GB.

Does anyone else have similar experiences?

I cant understand whats the problem when they suddenly decide to give up with no special reason for it. Hot discs with water dip is normal to go wobbly but this case is nothig like that.