Counterfeit SD/micro Cards

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Got caught buying a Samsung Micro SD Card 32GB Class 10 from Amazon although to be fair I bought through one of their Sellers. Anyway received the card and checked it on the computer and I after several attempts I managed to format it, thought I would check it out with ' H2testw 1.4' and on my phone with' A1 Bench SD' and with the former here were the results:
The media is likely to be defective.
7.6 GByte OK (16031680 sectors)
23.5 GByte DATA LOST (49469504 sectors)
Details:816 MByte overwritten (1671168 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
22.7 GByte corrupted (47798336 sectors)
34 MByte aliased memory (69632 sectors)
First error at offset: 0x00000000f6bf4000
Expected: 0x00000000f6bf4000
Found: 0xffffffffffffffff
H2testw version 1.3
Writing speed: 4.13 MByte/s
Reading speed: 5.49 MByte/s
H2testw v1.4

On examination of the card I compared it with a known genuine one and the difference; genuine one- clear markings with made in Taiwan on the back
Fake card: Dull appearance markings not clear no manufacturing country on the back it was packed in a genuine looking bubble wrap package
I am waiting for a refund and it makes you think that some of these cards must be giving problems to phones and 2din units