Electrician took payment & failed to do the job.

Will Viljoen of Quantum Electrical in the Amanzimtoti area quoted me for a mains electrical repair at my home in Amanzimtoti. I paid him R 550 call-out and R 2000 deposit for the job. Quantum never did the job and kept my money. After battling for months to get refunded I eventually received R 1000 in 2 payments. The balance of R 1550 remains in Will Viljoen's bank account and I have been blocked by him on WhatsApp and emails are no longer rep**** to. Is this theft? Is this *****? Either way, use this specific Quantum Electrical at your own risk.