Extremely poor service from PNP customer care

Purchased a pocket of rotten potatoes from PNP hyper by the sea a few weeks ago, was promised a refund into smart shopper card last week, and nothing materialised. Spoke to a customer service agent last Saturday who assured me it would be resolved on Monday 1st June 2026. sent a few emails this week prompting customer care, but their disposition is nonchalant. Extremely poor service