I recently bought a 32GB micro SDcard from a company in the UK trading as >mirosdcardsonline.co.uk< . The card was a fake with maximum storage of 2GB! I downloaded a test program, “h2testw_1.4”, which works fine with windows 7 and confirmed that the card was faulty and confirmed the maximum storage capacity of 2 GB (i.e… Not 32 GB as marked on the card!).
This test program will identify the problem and give you the necessary proof to demand a refund based on the fact that the seller is selling counterfeit cards.
The company I dealt with, Micro SD Cards UK Ltd of Luton, UK, trading as >microsdcardsonline.co.uk< did not reply except to ask me to return the “evidence” and then they would not reply when I asked for my refund. I had to obtain a charge-back via my credit card company which took two months but eventually I got my money back. Always pay by credit card and you are then protected against this type of fraud if the supplier does not refund you after a reasonable period.
In addition to advising not to deal with this company under any circumstances (it is run by a Mr. Hamilton and a Ms Griffith who never answer a phone call or respond to emails!), I would urge all readers to buy micro SDcards from a legitimate retailer or from a bona-fide online trader like Amazon. I subsequently purchased a genuine SanDisk 32 GB card from Amazon which is all that it should be - a first class product.
Please also be warned that microsdcardsonline.co.uk also sell branded SanDisk cards (the one I purchased was unbranded) but I would guess that these would also be counterfeit, but at a higher price, so I would advise that you shouldn’t take the chance!