PURCHASE OF DOUBLE BED

Good day! I am speaking on behalf of an employee, Mr Zithobile Msesiwe. He purchased a double bed on 28 November 2012 , purchase price of R5772.98. He has already paid R11280.00 and Lewis is asking for a further R3306.75. When we requested a settlement figure, we were advised that he has to pay R3156.07. We would appreciate it if you could please look into this matter, as it is ridiculous to charge him R14000.00 for a double bed which costs R5772.98. Thank you