MISCOMMUNICATION

This has been going on for some time now, i find that debonairs,all their branches ***** their customers into buying cheese,i went to southgate to order a triple decker which costs R110-00 the cashier then askes me if i want single or double cheese as if its parts of the triple decker, not explaining that it comes at an extra cost, my bill ends up coming up to R150 or so , i ask why has it gone from R110-00 to R150-00 and the cashier told me i requested extra cheese, now at this point im pretty upset because she asked so casually and i thought that was a trick,i feel if you going to ask me such a question when i didnt bring it up atleast have the audecity to tell me its gonna charge me extra, why are we omitting information. That is otally unacceptable