Call center slow response

Good day<br> <br> I have been experiencing a horrid response time from discover's call center. I would mail them only to receive a response at a minimum of one week (2 if I'm lucky). This resulted in my vitality plan being cancelled (incorrectly), virgin active charging me the full subscription amount and sorting this out is impossible via their email call center. <br> <br> At discovery's rates you would at least expect good service...