Yes; happended to send mine last month to P&G Photographic Centre @ The Adelphi. Here is the address:
1 Coleman Street, B1-04, The Adlphi, Singapore 179803; Tel 68370696. Contact Mr David Phan. He do lens realignment as well. Price wise, I'm not too sure is reasonable but I got my done at $150 for removing dust partical and realignment.