Have you got spigot rings in them then m8???????

Could just need the hubs/alloys cleaning up a bit

Clean the hubs up with a bit of emery cloth,and put a bit of grease on them before you stick the wheels on

Also its important to make sure the face of the hubs are clean before you put new discs on,this will give the same effect as warped discs because the disc doesn't sit flat on the hub if there rust/mud etc between disc and hub