I have a customer that asked for an estimate on dethatching. went and looked at the property and gave an estimate. He accepted. here it is a few days later and i emailed the client telling hime i would be there to dethatch his lawn thursday morning. he replies "i do not want the lawn dethatched, i want POWER RAKING" so i called him telling him they are the same thing, he begins telling me that they are not and refuses to budge. am i wrong? i always thought dethatching and power raking were the same thing.