Not Gold Standard service

The salesperson who came to my home was polite and courteous. When I asked why his quote was the highest I have ever received he explained that wiping of all of the bottoms of the windows was included so I agreed to the service. The sales person also told me I didn't need to be home for the service to be completed and that if I wasn't home notification would be left on my front door that the service was provided. When I arrived home from work on my scheduled day there was no notice on my door that the work had been completed. I looked around and noticed that not one window ledge had been wiped. They were filthy. I figured they didn't come. 3 weeks later I got a call from the office requesting payment. When I explained that I felt they hadn't come or received an invoice I was told that the confirmation the day before was guaranteed they would come and they do not leave notice on your door if you are not home since they are paperless. So, why couldn't an email have been sent the evening of the completed work stating that the work had been completed and payment is due? This would alert the customer to check for deficiencies and quality of work (which wasn't great, otherwise I wouldn't have even questioned if the windows had been cleaned). The agent on the phone didn't care I had photos of 17 windows with not one ledge wiped since I didn't complain about it on the day of the service. I also paid extra for the rain x which I also don't feel was applied. My word of advice if you are hiring this company - be home when work is to be completed. Watch what they do and the moment they leave, if you aren't happy call immediately. Do not fall for the salesperson assuring you that its ok not to be home and that they will leave a notice on the door. This is simply untrue since they are paperless. If you are unhappy with the work you will have no recourse.