Vendor certify guenine, but H2testw results are dramatics. Is it fake?

Hi bought an SDXC 128Gb on Amazon. The vendor is claiming the device to be guenine.

H2Testw says otherwise. Can i be certain it is fake (and not simply defective)?

Error reading file 'J:\113.h2w', offset 0x100000. (The request could not be performed because of an I/O device error. Code 1117) The media is likely to be defective. 67.9 MByte OK (139168 sectors) 111.9 GByte DATA LOST (234743904 sectors) Details:0 KByte overwritten (0 sectors) 0 KByte slightly changed (\< 8 bit/sector, 0 sectors) 111.9 GByte corrupted (234743904 sectors) 0 KByte aliased memory (0 sectors) First error at offset: 0x00000000000d4000 Expected: 0x00000000000d4000 Found: 0xbce412cbbc5c41ad H2testw version 1.3 Writing speed: 14.1 MByte/s Reading speed: 24.3 MByte/s H2testw v1.4

Well it seems amazon don’t want to make noise arround this and already made a refund and free return (i din’t ask it yet). It seems the vendor will continue business as usual and all will be forgotten in a few days…what a wonderfull world.

Well, amazon is selling and delivering Samsung EVO 64Gb (microSDXC 48 MB/s, class 10) for 30$/EUR, so i think i will switch.