How old is the reader? Between date of purchase, and date of complaint, I mean?
If less than 6 months, the standard a court would apply is that they have to
prove, on balance of probability, to the court that the fault on the reader was not inherent. You do not have to prove it was.
After 6 months, that burden reverses, and falls on you.
So .... one question .... how far do you want to push? In part, that depends on how annoyed you are.
I once threatened (and was utterly serious) an insurance company with court over some £30. They'd dragged their feet for
months over settling a claim that they'd admitted. They tried to wriggle out of this bit, then that bit, all to keep their costs down. Eventually, they offered to settle everything bar that last £30, which was credit card interest incurred ONLY because they'd been so slow. They sent a cheque for some £3500, but excluded that last bit. By this time, we were 6 months down the line.
So I added up all the extra costs I'd incurred while they pussyfooted about trying to reduce their costs, including that £30, and sent them a statement, demanding settlement in full within 7 days or I would proceed to legal action without further discussion. I sent their cheque back, marked "refused" and cc'd my solicitor on the letter. I sent the letter recorded delivery, faxed a copy as well, and then rang the claims controller.
He still tried to insist they didn't pay credit card charges. I told him if they'd acted in a reasonable timeframe, there wouldn't have been any, and I'm not paying for their sluggishness. I told him (truthfully) that the court claim papers were aleady completed, and would be posted in the first post after my deadline ran out. My letter pointed out that additional costs would be incurred if that happened, and I would claim. I pointed out I'd been reasonable throughtout, seeking ONLY reimbursement of losses incurred, while they'd spend six, yes six months trying to weasel out of anything they thought might work.
So, Mr Claims man, the clock is ticking, deadline set. You have a binary choice .... settle in full, or let a judge decide. I was REALLY hoping they let the judge decide.
Next day .... motorbike courier arrived with a cheque in full settlement.
So, why was I hoping it went to court? Because by that time, I was so angry with being jerked about I wasn't going to settle for 30p less, never mind £30. Had they made that £3500 offer reasonably promptly, instead of jerking my chain for months, I'd have accepted a small loss on my entitlement just to avoid the hassle. But after 6 months, I was actively hoping they let it go to court, BECAUSE they'd jerked me about, and never mind that it was a hassle.
So, IF you really feel right is on your side, and especially if the reader is less than 6 months old, how obstinate are you prepared to be?
I don't know how Amazon are, but many companies won't want to muck about with small claims court over trivial amounts. They MIGHT over the principle.
If you do decide to dig your heels in, be very careful to be reasonable at all times. Just also be aware that if you send the reader back to Amazon for "inspection" you've also lost control over the main piece of evidence. You might want to get qualified advice over the best way to deal with that. Do you have any form of legal insurance, with car or home insurance for instance, that gives access to proper legal advice on general matters? Lots of policied include this (and vharge for it) unless you explicitly remove it. If so, maybe use it if you want to push it.
IMHO, a lot depends on how peeved you are, and how much mucking about you're prepared to go to. Financially, it's not (
IMHO) worth the effort, but as above, I've been known to be downright obstinate, regardless of the money, if they get me peeved enough.