Very bad service

I took my company vehicle to this company on the 2nd of February in Pinetown and it was driving but had a slight problem in the gearbox. They convinced me that car will be sorted out in a week. Every time l called to check on the progress they told me that they were busy working on it. Went there after 2 weeks and l found my vehicle in the same spot same way l parked It and not touched. 2 more weeks now they say that are closing my and they are lying again and they don’t take my calls and emails anymore. I have lost so much money as a business and highly not recommend