The TERRIBLE customer service never ends

I completed an online contact form on Thursday for someone to call me to discuss my latest invoice, showing "in arrears" when I have the proof that I paid, and have STILL NOT received a call?? So, not only is your website NOT user-friendly with no customer care email address anywhere to be found, but your customer care agents don't actually follow up & call when they're supposed to? Could this be because you're inundated with callback requests due to your poor service? I suggest you invest in a CRM with a ticketing function & offer customers a customer care email address to send their requests to. I expect someone to call me ASAP to resolve my billing dispute.