I doubt if sellers can sell at any rate...for me, though price agreed was 58K for 700B, Seller still generated the invoice for 64,900...with mention of amount received as 58K....and then they just write "U/E" on the invoice to signify Under Exchange...to my understanding, there is mandate that they cant sell SONY models at below prescribed amounts.
Same logic was also given to me by 1-2 dealers, who were not willing to go down on price...stating "Sir, even if we wish, we cannot sell you SONY at lesser price...else our license may get revoked"...