Feedback on Billing Email query Unacceptable!

Trying to find out what the weird Billing email I'm getting since November (before I even had an active contract), which is showing me in arrears originates from - because your Canal Walk store managed to stuff up my initial application so VERY thoroughly but then I managed to get my contract via your CC (in December) and now I think the store is continuing trying to bill me!!!<br> <br> So I forwarded the email to your Call Centre and get the response that I should call instead!<br> <br> I CANNOT BELIEVE THIS IS THE RESPONSE!!!<br> <br> If I wanted to WASTE my time trying to call your CC don't you think I would have???<br> <br> There is an Account Number in the subject of the email I received - SURELY that can be used that to look up the details on your system!!!!!<br> <br> This is just LAZY LAZY LAZY LAZY and there is NO EXCUSE for it!!!!!