Trade in, serial code

[titu1973]

Im trying to trade in  my ps3 slim for a voucher and when it asks me for the serial code it just says ‘the imei can only be 15 characters’ and I know I’ve put in the serial code correct. I don’t know what to do could someone help?

[papso22]

Is this an ebay thing?  Sounds like CEX.

[plpmr]

eBay don't support trade ins.