My African buy online store robs Authors

I am Author who advertised my first book on My African buy online book store and I never got paid for the book I gave to Sibahle Malunga. I have requested to terminate my contract with her and still does not want to give back the books that are not sold and pay for those sold. Sibahle Malunga Excutive Director of My African buy, has choosen to ignore my calls and my emails.