Next chapter - I contacted the company that refurbished the alloys and they informed me they only do them to factory standard - so no paint on hub faces or extra paint on insides etc. So I had my wheels taken off and guess what - no paint as described! So the BMW dealers story of refurbished wheels causing brake disc warp does not apply here. Rang them today and they said they would speak to Head Office and get back to me. So they obviously didnt even check my wheels in the first place - I had them photographed today whilst off the car.