Printer Cartridge Samsung M2070 & Printer taken

Our printer was taken by Samsung as the toner cartridge was used far too quickly as we know that we had not printed between 1*** pages in 1mth. Printer collected on 5/6 and two weeks later we have had a totally unsatisfactory feedback. We were told that we would get the machine back yesterday. When asked if the toner cartridge is going to be replaced the person who we dealt with was not sure...neither the Samsung rep nor the Save Hyper person handling this have responded to us - we have had to chase them to get responses. The toner cartridges are expensive and this printer is used for me to conduct my business and for two weeks I have not had a printer!!!! Disappointing