Gladiator Rooter and Plumbing

My landlord contacted Gladiator Plumbing to fix a bathroom sink leak. They came by a total of 3 times. They installed a new faucet to hopefully take care of the leak. After it was installed I saw it was still leaking shortly after he left. I contacted the installer to tell him it was still leaking. he came by again and said don’t put water on top of the bathroom faucet. He seemed annoyed to come back. I’m confused because it is impossible to avoid water on or around the faucet (handles or base). The installer said he couldn’t help me and that it was user error. What????? He recorded a video to send to the landlord showing it wasn’t leaking. He said I probably need a more expensive faucet that won’t leak. He said something that costs $500. I said I don’t need an expensive faucet nor do I know what they cost. I need a faucet that functions as it should. Once the installer sent his recorded test (poring water on the sides of the faucet) -the outcome—-all of few minutes later their was water on the baseboard of the bathroom sink. The installer ran out quickly because he didn’t want to fix the problem. I contacted gladiator to tell them I don’t want the same installer to come back to address the problem. Gladiator is claiming they completed the job. I said you didn’t fix the issue because the bathroom sink is still leaking. Gladiator claims they might need to do more and they need approval from my landlord to tell them what they want to do now. They are trying to get more money and dragging it out. It’s been a week. This is soo frustrating because they didn’t complete a simple job.

They quoted me $200 for a toilet install then charged me $450 after installation claiming San Mateo is more expensive and it was a non-standard toilet (seemed normal to me). The guys did decent work installing the toilet, but the floor was scratched. If they just quoted a price and charged the same price, I’d feel better, but I feel like it’s just bait and switch. Buyer beware.