Accidentally paid landscaper extra check and now I can't reach him

[Bill Coleman]

Ugh. What a dummy I am. I was rushing to get out of town and to complete my landscaping before that. I accidentally sent my landscaper an extra check for $2100 and now when I reach out to him to have it returned, I can't get him on the line. I have sent him many emails, texts and payment requests using SparkRent. 

What are my options? 

I could go to his place of business but I doubt that he is even open during the winter. Should I just file with the courts and collect that way? How will a court look at this overpayment?

Any help is appreciated.