Complaint for refund not done and excuses made ***

Most horrible experience with Woolworths! My store account is in credit and I would like to close my account to be told that u I must first be refunded before I can close the account. I sent the required documents to ensure that I am refunded, then I get either no response or excuses after I sent the documents on 12 April 2018 already! They don't respond to emails nor try to solve the client complaint. I am so happy that I no longer deal with this disgusting retail store!! If my refund is not sorted out by tomorrow I am going to take this further!!!! Ridiculous to wait a month for a simple refund.