POOR SERVICE

Hi, I placed an order on the rentoza website and paid the subscription. The accounts department keeps confusing my account details yet i was advised that it was resolved months ago. The whatsup chat number is useless as no one replies to your messages. I tried the rentoza website to try and speak to an agent and its been over an hour and still no response. Why does this company give such POOR CUSTOMER SERVICE YET I AM A PAYING AND EXISTING CUSTOMER.