missing cash residue balance dividend reinvestment

something you might want to check I sold all my holding in Imperial Tobbacco on 22 09 2011 and due to changing my account with natwest stockbrokers from crest to nonimal account i am recieving cheques for the residue cash balance left over from any dividend reinvestments just reciebed one for imperial tobbacco from the balance carried forward from 22 09 2011 that might mean that they are using you money until you claim it back I have not recieved any other paperwork since that date three years sitting on my money is along while ASK YOU BROKER TO CHECK FOR OUTSTANDING CASH BALANCE FROM REINVESTMENT DIVIDEND THAT YOU NO LONGER HOLD THERES MONEY THERE