Fencing & retaining wall contractor

Organised a job a month earlier gave me a quote without looking at the job said it will be fine turned up here, was a few bushes on the neighbours side said it should not be a problem.He was waiting on another worker to arrive so he could start so I left him to it. Went next door 20 minutes later and he was gone! Refuses to answer my calls or messages so now I have to organise another contractor to do the job.