Lack of Customer Service

We met Ingrid at the Homemakers Expo and inquired about their products for our home extension. Sent emails for an estimate quotation - heard nothing back. Sent follow up emails - nothing. Sent another finally received an answer, and sent our plans to get an estimate costing for double glazed double volume windows and doors. And again heard nothing! If this is a reflection of their customer service to gain new business then I do not want to know what it is like for installation and aftercare!