Live worm in PnP basmati rice and no customer care

As I live remotely on a farm, I shop in bulk and travel only seldom to my nearest Pick n Pay 45kms away. I bought four packs of Pick n Pay Basmati rice (expiry date 19/12/19) late in February, and on opening the first pack late in March, I found, in the rice, a LIVE WORM and its stringy nest - yuck. I took pictures of the worm, the nest, the four packs and sent a complaint (with a request to refund all four packs) to Pick n Pay's customer email address on 27 March. An auto response arrived followed by a request for more information, which I provided. On 29 March, more than ONE WEEK ago, the issue was apparently ''escalated to the corporate brand department". After hearing nothing from anyone, I sent a reminder to Siphesihle Ndlovu on 31 March, and a reply came (3 April) that the matter had been ''assigned to a Food Technologist and they'd revert back to me directly". I'M STILL WAITING. How long does it take for someone to acknowledge that worms in dry goods is unacceptable, and to simply refund me (for the four packs - because I've a bad taste in my mouth for all Pick n Pay produce right now and wouldn't consider eating any of the the other packs of rice - especially as they all have the same batch number). Pick n Pay - your customer service is SHOCKING. Bad enough that your product is contaminated and inedible, but that you can't simply acknowledge the problem and make right timeously, says a lot about how very (UN)important your customers are to you. It'd be so simple and so easy for you to credit me the R100 or so, with a token additional voucher for making me so utterly peeved, but you'd rather lose a customer and have her share all this with everyone she knows and online? Sies, Pick n Pay, sies.