GMAC Mortgage has the rudest customer service people and they change mortgage policies without informing customers. Payment terms and acceptable methods of payment were changed without my knowledge or consent. When I tried to make a large payment they refused my check, sending it back, causing me many days of extra interest and wire fees. When I tried to discuss this with customer service I was yelled at, interrupted, spoken to like a child, and told that they set the terms, changing them whenever and however they liked, and that I had to live... read full review »