Refusal to send invoices

<p>I was advised by the sales person who assisted me that I HAVE to provide my banking details for payments. And just as I expected, to my own detriment. I was debitted double the amount agreed upon. I have sent two e-mails to the billing department to get an invoice and determine what the difference is for. I have sent two e-mails to the sales rep who was very eager to assist me in getting the product sold but now seem to have vanished into thin air. Surely a company like MWeb who provides ADSL services should be responding to e-mails. I need the billing department to send me invoice ASAP. It's sad that one should lodge a complaint first before the relevan person will even consider doing what they get paid to do.</p>