What a shame. Nowt worse than finding your speaker cables don't reach. Been there too many times to count.

Not sure if this will help but RD has said before that he will make up odd lengths. For example, if your kit is off to the side and you need a 5m and a 3m length you just pay for a 4m set. Just wondering if you could maybe trade this in. Sorry if that's no use but I thought it worth a mention.