False advertising

I searched their website for specials and came across a headlamp that stated "rechargeable". Theprice advertised was R60. When I went to purchase it I noticed that it had normal alkaline batteries in the package. I went online and chatted with the online consultant. After about 2 days she advised me that managment said that it was changed to normal batteries to make it cost effective. If so, then why are they still advertising it as rechargeable? I want re rechargeable batteries.