Of course we can mount to brick. It's the number 1 mount on the mounting hierarchy. Sometimes you come across as anyone that's not a retailer is working with half a toolkit and 1 hand tied behind their backs. It's probably not TOO hard to not have to sell SHS, worry about 12 day TC's, CSATS, OTA, walking on roofs or abiding by many of Dish's other standards....
As far as billing, the overseas CSR's like to take things like this and create trouble calls to override the charges OR they'll get you to take the protection plan for 6 months so they can lower it to 10 bucks.