Sworn at by the owner of the company for pestering him to finish his job 2 months after deposit payment

I had a great experience when contracting a company GasandEquipment for an LPG gas instillation in January 2019 after paying the deposit. Everything went well until they didn't finish their work and I rattled their cage after being dropped a number of times. On 21 March 2019 was going to be the day that they were coming to finish but didn't pitch. I called Danie van Huyssteen to find out why and was told to **** off. Well Danie I have ****ed off as a client. Everyone else, stay away from this company