problem in front suspension

i'm a new owner for cruze
my car now exceed 2000KM with few Km's and since i had 1500 Km i hear a hard sound in bumps ,specially in the front left side
i went to a car center nearby to my hous ,they elevate teh car ,check teh tightening -found everytthing Ok but found that the movable upper and ball joint of the stablizer bar is slighly loose {not hard to move with fingers}
he commented that the stablizer link need to be replaced {left and right}
i went to the warrent agency and they inspected teh vehicle and conclude that left mackferson strust should be replaced{oil leak} and teh right one could be work
they replaced the left one only and replace teh upper mounting rubber plate for right an dleft mackferson strut
i test teh car for one week and found teh noise at left side almostly disappeared but i still have noise in right side in bumps and unsmooth roads
Is it normal to get teh ball joint easy to move with finger and do the mackferson is teh real reason for sound or the stablizer link is teh cause of that

please advise for any one can help
because i reserve a date next Saturday at another place to inspect teh problem and i need to get a complete figure on my problem before this visit



thansk