M and E Septic Service

We had to have drain lines added to an existing septic field? Or this is what he said needed done. So we paid him 6500 dollars and septic field he so call fixed failed. We called him, text him for 2 months. He said “I am a man of my word”. I will be there to fix it”. He came and pumped it and said he would be back next Thursday to fix it. Three weeks later it’s still not fixed.