Extremely Poor service by service provider.

After my tenant damaged my swimming pool filter O give him permission to obtain a service provider to replace the filter. He got a quote on the 2nd August 2018 to the value of R5000 from Sec_Pools to replace the filter. After numerions of phone calls and WhatsApp messages when they going to replace the filter and each time a different excuse, I was told at the beginning of December 2018 that his diary is fully booked til January 2019 and I should either wait or get a other service provider to replace the pool filter. I got a quote from a service provider to the value of R8070 to replace the filter, drain the rotten water and acid wash the pool. I phoned him and requested that he refunded me and his words was that he will pay 50% the end of December 2018 and the rest end of January 2019 due to the lack of finance. I phoned him on the 2nd January 2019 to confirm that he received my banking details and he told me that he will do all the payments today. Until today the 8th January 2019 I have received zip from him.