No sound after buying – Bilingual Child: Learn Spanish Review

The app worked fine before I purchased it, now there is no sound rendering the app useless. Tried to go to website for help and cannot find a help link. Nor can I find any buttons in the app for sound or help. Very frustrated. Will up the stars when my money is well spent. Someone from company please reach out to me.
Review by Frustratedperson on Bilingual Child: Learn Spanish.