Horrible customer service for faulty phone

Terrible experience with hisense service centre cape Town. Bought hisense F31 which was problematic from the start. It had to have a new camera done when I bought it due to poor quality. So far they have replaced the sub-board &mother board twice of the fone & it keeps refusing to charge. Logged a complaint almost 1 month ago requesting a replacement or refund & I have been sent from pillar to post. Their team leader Rubin Ruiters either ignores me on end or promises feedback that never comes. It's almost a month now I don't have a fone or refund- terrible customers service and while I liked the fone the service after it was faulty makes me advice you not to buy their fones ! !