Very unhappy with the customer service

I have bought their products many times before and it's absolutely divine, however on my last purchase the product (Almond Rocha) was old and tasted horrible. I kept the remaining bars and contacted Forest Fairies via email, phone call and whatsapp. The service was absolutely terrible. My complaint was acknowledged and then just ignored, eventually I was told they'll replace it for me but no one ever delivered anything. 1.5 months since I logged the issue and still nothing. The products are usually amazing but the service is pathetic. Really unhappy