ok so I installed the new apartment life patch in sims website it fixed my problems
1. cellphones now work properly
2. school bus now picks up multiple kids ( i dunno if the patch fixed the problem i moved in a new family and removed the buggy one i think)
3. cooking skill is retained
4. cars can now be retained when moving to a new apartment
can anyone tell me if installing all the other expansion pack patches without uninstalling or reinstalling them will not cause a problem?