Return of product - Consumer Complaint for Jumia Ghana

I made a purchase for a black mikachi water dispenser which cost ghc595. What was delivered was a red vizio dispenser which cost ghc580. I made a request for a return. I got an email and sms indicating that the product will be picked up today only to receive an email later that my refund request had been cancelled. I tried calling the driver who was supposed to do the pick up, no response. Jumias hotline never goes through and when I tried filling out a complaint form again I was told it was a duplicate complaint so it was deleted. This is totally unacceptable and I am not pleased with the way my order has been handled.