[LowlyAssassin]

Well we can do it you PayPal me upfront and I partial refund or gift the difference back to you once I receive the item and trade it in,
this was works as I can use the money from the trade in for postage then refund what's left

Or I buy one at a time and trade it in when it arrives
I can only do one at a time as I can only afford one at a time but then cex may drop the trade in price so you could end up paying more