> Sorry for the confusion.
>
> I have a phone, I then decided to buy a cheap phone to use when I am
> walking the dog. The reason being if it got wet etc then it would not
> be an issue unlike my expensive phone.
So did you ever use the new expensive phone successfully?
>
> When I tried the new phone it did not work. Eventually iwas able to
> determine that it was because the sim had expired.
AFAIK SIMs don't start to expire until first use or some date vastly
into the future. Then they expire after 3 months non-use. I was able to
find a replacement Orange SIM for my mum's old Orange locked phone in
Poundshop after asking in an EE shop where I could get one. The phone
wasn't worth unlocking but was still useful as she knew how to use it.
>
> In the process in determining wether it was the sim or the phone I
> swapped the sim with the one in my existing one.
OK. So known good SIM in brand new phone and it didn't work.
How old is this "new" phone? Given that its SIM has expired.
Is it locked to a particular network?
>
> When that did not work I phoned EE from that phone. The lady asked
> for the IMEI she said the phone was reported lost.
But then you say you used it to phone EE.
>
> The procedure to un blacklist the phone would be to provide a receipt
> that states the IMEI. I bought that phone from Argos they do not
> provide a receipt for the IMEI.
I don't recall seeing the IMEI on any receipts I have had apart from in
the dim and distant past when you got to choose your new number from a
list in the shop and buying a mobilephone contract was a big deal.
But if you still have the physical packaging as well as a receipt from
Argos then I think your best bet is talk to someone in an EE shop about
your predicament and see if they can do something for you.
>
> I tried to argue that it is possible that someone misread their IMEI
> and they had blackened mine in error. Her argument was that becaus it
> is a 15 digit number they are derived in such a way as to make that
> possibility near impossible. But I have looked on my box and not only
> do the 5s look like 6s but the 0s have a dot in them and look like
> 8s!
If they use the algorithm I think they use then the only wrong digit or
transpose error that can get through is certain pairs and 0/9 swaps.
https://en.wikipedia.org/wiki/Luhn_algorithm
They are correct when they say that IMEI is almost foolproof.
--
Regards,
Martin Brown