Appliance Repairman

I called this company to fix the squeak on the dryer. I was told the labour would be $280.00 plus $80 for the rollers. The total ended up costing $452.00 and when I turn the machine on that night the dryer was worse than before. Eventually they sent the same technician back and replaced the rollers. My question is did the technician even change the in the first place?On the second visit he provided the rollers that he changed and they were old. Two weeks later the dryer drum doesn't even turn anymore. I will never use this company ever again and strongly recommend other not to use them either.