I have a navigation problem due to incorrectly ins...

I have a navigation problem due to incorrectly installing an update. (my fault). I brought the issue to Boardwalk Chevy to resolve the issue. I feel I did not receive superior customer support. The technician communicated the problem with GMNAV (Veronica) Technician stated Veronica stated I would have to call back and we (myself could come to terms. I was charged $210 This is not customer service. My exaction as the customer is for Board walk and GMNAV should have worked together on my behalf to resolve the problem, not tell me to call back GMNAV. I am I am sure I am not the first person to incorrectly install a navigation update. I am sure there is a fix. It's just that no one a Boardwalk Chevy or GMNAV want to make a real effort to help the customer. I am going on 5 months without my Navigation maps. GMNAV . BTW I did speak with Mike at GMNAV He said their engineers need to review the issue with no time line for call back.