I have hearing bugs in home. I called professional sweeper and charged me to sweep homes and car in thousands around 4k. I wasn't allowed to follow him while he swept the home downstairs and upstairs. After sweeping 2-3 hours, he went outside my home 3-4 blocks away with his sweeping device. Finally gave report saying that there are no hearing devices in my home. Whatever we speak in home, people are hearing and following us to supermarkets and shops from past 4 years. Initially this sweeping company didn't give me any written letter about this job and later provided me saying that there are no listening devices in my home and car. They said they swept the devices that are not transmitting and found no hearing device. if this is the case how come people are following based on what we speak in car and home? When I asked these questions, company didn't reply quickly and took sometime and says they can only guarantee that there were no bugs at the time of sweep. We made sure someone is present at home all the time after this sweep is done. Following us to shops based on our talks in home and car is happening from past 4 years. what legal actions I can take here?