The packets will not be lost due to || characters. I certainly have written enough programs which process packets in various forms and sizes. That is just not how the transport layers confuse things.
The problem, lest we get off track here…. Is that Referback is likely NOT reconstructing the encoded urls properly, so this is the reason the tracking could be off… I seriously doubt that Referback takes the ‘LSS=JPCTYPEINTRAFFIC’ and converts it back to an affiliate tag. That makes no sense when the packet contains the typeintraffic tag.
They need to fix this and stop giving us a bunch of rubbish like we are all a bunch of idiots.