Not happy costumer

Very unfortunate experience with Kelvin towing and recovery 16 Pretoria main RD ,Kelvin Sandton 2094 December last year took my car to this workshop for repairs long story short car was assessed nd quotation given amount to 20k no problem paid all the money then when I request invoices the guy blocked my number nd I started suspecting that nothing was done to the car of which I later found out that my suspensions were true as the car is now giving me trouble again so ladies pls be careful of this guy he turns out to be unreliable nd I'm really not happy with what he did as I have paid a lot of money for nothing