Review Staff Training Required Dischem Baywest

Tried purchasing Bioderma Sensibio Micellaire 500ml on promotion on the 07/12/20, no stock available. Consultant couldn't reach another store in my presence then arranged for a Rain check however(incorrect product listed).By 24/12/20 I had followed up 3 times as I heard no word from them i was told no stock would be received at present I ended up purchasing 250ml.On 27/12/20 I went to Dischem Newton Park,fully stocked in 500ml Sensibo but Denease Cosmetics manager explained because the staff member listed the incorrect product on the rain check she couldn't sell it to me using my rain check.She called SM at Baywest who would have to arrange for the product to be sent there.What happend to great customer service, going the extra mile
with knowledgeable staff?