Bad Customer Service Experience

Just had the worst customer service experience at Builders Express N1 City Cape Town while trying to buy paint for my daughter and I to redo her room. After waiting my turn to be served the assistant, whilst serving me, started assisting another customer, almost completely ignoring me. When he realised I wasn't impressed with his action he tried to get back to me. By then I had decided to not continue with the transaction but thought it my duty to raise it to the manager. After a further 30 minutes and the manager hearing the story and apologies given, the manager concludes "sorry but there's nothing we can do because we can't reimburse you". Did I mention that during the time the assistant was explaining to the manager what had happened, the manager chose to assist another customer. When I mentioned I would no longer be using the store the sarcastic response received was "that's unfortunate". So I guess that's just the way the treat customers in that store.