Service delivery is not as promised.

Worst frustrated ever then before.....What do i need to do more to get your attention regards my queries by sending mails after mails and all response I can get is... you will have a look into the claim and will feedback alternatively send a email.this was even from consultant escalated to team management department but still no feedback.I will say it again i hate when my time is been wasted by people. I'm paying for a service and is not that your service is free.I want feedback before end of business....