Well don't just jump to concusions. For all we know you could have a dodgy or poorly coded plugin on your site in which case it was consuming lots of server power. ALL hosting companies suspend you if you use too much processing power. They don't even press a button as it's done automatically. "Fatal error: Allowed memory size of 33,554,432 bytes exhausted" indicates their servers are struggling.

For all we know it could have being your site and then this kicked in automatically and suspended you. Do not jump to conclusions until you've heard the other site of the story. It most likely is the host's fault but you can't go calling people scammers if your not entirely sure of the suitation and don't have the full facts.