Hi to all you guru's out there!

I have this problem, I have just changed the suspension on my wifes 97 gti, the rear shocks were gone so she bought a complete set of lowered springs and uprated shocks, now i have fitted them but, the front strut top has a lot of play in them, with the car jacked up, i can lift the wheel up about 5-10 mm, but everything is tightened down properly,now this shouldnt be like this! so would packing it with a few washers be accecptable or is there somthing else i should do?
many thanks for reading