Google support I've found generally to be terrible since it is not possible to make contact with them directly and you need to go through the often substandard help forums. I initially put a request on the help forum and got a response which I appreciated, but didn't feel the approach would help. I continued to investigate.
I found the following page (https://support.google.com/blogger/answer/42577) and submitted the request. Google does not want spammers and scammers using their service, but I was surprised to see how quickly they can respond. The offending blog was removed very quickly.
If you find you're in the same situation as I was, then give the above page a go.
Kelvin Eldridge
www.OnlineConnections.com.au
Call 0415 910 703 for IT support.