Treacherous behavior

Good morning I would like to ask for a very highly intensified aggressive intervention into this company. I made a purchase of of one of their low mileage bakkies through my best friend as I was harshly dealt with by my employer not paying my salary due to incorrectly activated transfer from Gauteng to Eastern Cape in 2019 between March to September. Then my friend stood in for me with his papers in purchasing the bakkie but all the payments were made from my bank account. But then we had a fall out with the friend that led him into asking the company to take the car mind you it was driven only three months from September to November 2019 and payments were up to date. But then the problem started when the company refused to return my deposit of R15000 as stipulated in their contract that a deposit was to be returned in the event of them taking their car of which they have refused till this day my lawyers have even tried but refused still. The paperwork is in my possession as hinted above in terms of contract and stuff. I even sent my bank on their strategical methodologies but in vein rather. I trust in you completely you'll be able to get me my money back. It is such a heartache that we deal with such vultures in the industry when we need reliable automotive support systems agreeing to enter into 3rd party type of purchases when they reverse their interests (the car) but they want our money to remain with them permanently.