Well after having my new suspension sorted thaught all problems associated with it were over.....but not quite yet it seems

When turning left (doesn't happen when turning right) there seems to be a bang and sometimes a groan, sounds like the spring is banging or moving in its seat, thirstly is this possible..? can the spring move or turn if say a nut or bolt isn't tight enough..? secondly could it be anything else...? car drives fine otherwise and there is no rubbing or anything like that.
This problem only started since having this Jamex kit put on, nothing like this with the previous suspension.