AAa Air Conditioning & Repair is abusive!!

This company has the most unethical and abusive practices I have ever seen. They sent Carlos to my home 3 weeks ago to repair a leak coming from the rear of the refrigerator. He used a tube from his vehicle supplies and replaced the tube I had. Today (because it is still causing problems) he lies and said he spliced my existing tube and they need to charge us more money to come and fix the problem. They are not accountable and will not honor their 90 day warranty for labor. They are wrongfully charging for services that were incorrect and insufficient from the beginning. They refuse to refund our money for terrible service that was done. They are not to be trusted.