Shocking service, exorbitant prices

I have never experienced such exorbitant prices for batteries and such an appalling attitude. I was told they do not give refunds and when I asked for their company policy which should be available for customers to view, the shopkeeper told me to contact his boss. The boss, called "Collins" never answered his phone, nor WhatsApp until I re-wrote a request for a refund an hour later. The attitude of the shopkeeper, Truth, was appalling. I have NEVER been treated so badly in a store before. There clearly is no regard for customers nor the fact that they charge way above the average rate.