well its an interesting one..I don't fully understand...
are you saying the serial no. being 91 means they are 12 years old, and he said 4 yrs...?
I suppose it comes down to intent...the seller could well have bought them from the shop and was under the impression that they were recent... it does happen..
with regards to the servicing...this is where you start having to ask all sorts of questions....you can easily leave out info. in listings and receive something only to find its not quite what you thought...then again, its your responsibility to find out, sometimes you have to think of everything...I have been deliberately mislead on at least one occasion, got the wrong thing sometimes thro' my own fault of not investigating something enough, and then again the genuine ignorance of the owner...
you could say serviced, and a report given, and it will be, but by whom? when? what was done? just a slip of paper saying std service... £xx ,what constitutes recent?...
joes musical junk store gave it a cosmetic clean...serviced?? definitions....
(I had something that said boxed, any decent thinking individual would take that to mean original box,
I only buy with this now for((1. if it gets damaged in transit, the courier has no excuse to refuse on grounds of poor packing.. a courier damaged it categorically, but was poorly packed...I was in the lurch...
2/ its easier to pack for posting, and more attractive for buyers, too...))
it came in a shitty any old box..I was pissed as hell, and gave him hell, but to no avail...for a small amount of cash, it could cost more and there is the time and hassle...) yes square trade was worse than u/s waste of space...
with something like this, and a tempting buy it price, its easy to dive in and find out the hard way....
there are different versions of bits out there, and sometimes, listings don't give what you need to know...
its a lesson, and I bet you won't make the mistake again...you can sell on, and maybe not lose too much....probably best to ask for a full refund in exchange of the amps, if not a goodwill discount...
...I am not fully sure of the law in this...it is secondhand, and you don't have the same rights as with new stuff..its a payoff between time, energy, hassle, lawyers fees, etc...for maybe zilch...just cos you don't like something when you get it unfortunately is just the way it is...I have done this too and its a bummer...
a good eg is a car...it could be an import, and you could buy it now say, with a nice spec. and good service history, and that not disclosed...the seller is not really doing anything wrong as such,
or say a service history...how much, how long...may be one mot, and a few replacements...not a nice full info on everything...you get the point
then there is the random instance of a failure when you get something back...it could well have worked fine and all that, and just happens to die on you in the first hour...it happens, too..
is it really getting to the stage where we need to research every items history before we buy or sell..?? imagine if somethings been modded and you don't know and you sell...??? somtimes ebay is too much hassle, and I think the novelty will wear slightly.
hope it gets sorted ok for you..