I bought a Canon power shoot sx720 hs .and I can't set the langue to English. Will i be charged a fee for this?

I've seen that happen before! bring it by, no charge

Greg is very nice. If he can help he will. Very hard to imagine him charging a fee just for changing the language setting, especially since you bought the camera from him in the first place. That said, he might be as lost as you if he doesn't read the language it's set to, so it would still be a good idea to download and read the manual.

Have you looked up the manual online? Most cameras or electronic products have a manual on how to use and operate the device. Hope this helped you.