sims 3 expansion pack installation

[Bella020703]

Ive bought the sims 3 and 2 expansions packs were included in the buy. 'high end loft stuff' and 'late night'. I've tried to install 'high end loft stuff' and its asking for a product code and unlike the normal sims game I can't find it 

[puzzlezaddict]

@Bella020703  Does your computer run Windows or macOS?  Did you buy the content through Origin, do you have discs, or is there some other source?  And where in the process are you being asked for a product code?  There are several different ways you might proceed, depending on the details.