Backlash sound

My last Octy at 56000m had the dsg box go and price for new one was £4000. Bought a 61 plate but this time it had 70000m on, drives good and mpg very good , however after the last dsg going I seem to be listening to noises from the transmission. Just lately  the noise is like a backlash at certain times such as taking foot off then accelerating back up. It last no longer than one second is this normal for dsg?.