.could you consult me, please on my situation: Three parties: Me (owner) - General Contractor - RobertsonsMix (concrete company) General Contractor worked for me since 2016 November We used concrete materials on November and on August On November according to Robertsons I was received preliminary notice which was paid by general contractor in full and on time back in December 2016 On August my general contractor did not pay new balance and left my property Robertsons did not send me new preliminary notice and they are sure the old one is good for one year, even that one was paid in full, and this assignment is new? 7. Any suggestions? D.Dargis