slow to replace broken unit

The Tivo functions fine, but the DVD recorder gives an internal error. After extensive conversations with Humax and troubleshooting, they tell me it is a defective unit. It will take 7-10 days for them to send me the replacement, and they are charging my credit card until they receive the returned unit. One would think that a new company in this market would try to build customer support and loyalty through a fast return process. Certainly they could have sent the replacement by overnight or second day air.