DISGUSTING customer service for BROKEN item

Purchased a 'leather' handbag from Dischem about 2 weeks ago or so. I had been wanting and saving for the bag for 2 months prior to purchasing it. I finally bought it, very excited about my purchase. Sadly, a few days go, walking in the mall, the one side of the bags strap completely ********** the actual bag and it fell to the ground. Not only this, i had also noticed the stitching on the side of the bag had already been pulling loose to reveal the inside. Very upset about this, I go to the Dischem store in question to return the item for a refund. Sadly, as I did not keep my receipt, not expecting a brand new bag to break within 2 weeks, they refused to refund my money, even after having brought up my entire purchases receipt on their side- and providing my bank statement as a reference to match the amount on the receipt. The best they could do was give me a voucher and say sorry for you. I find this extremely disconcerting, as one item has already broken after 2 weeks, i surely DO NOT want to purchase another handbag here after seeing the shoddy quality of the products sold by Dischem. I am extremely unhappy and will most certainly, due to this lack of customer service received, not return to Dischem where I used to purchase my toiletries and health needs on a monthly basis.