Precision Pipeline Solutions

I had my automated electronic reader placed a year ago by national grid themselvesIn the last month I have had five PPS technicians come to my doorThree of which were in the last five days even after telling them I already had the device and calling the PPS and natuonal grid number to be taken off the listMy husband let a technician in yesterday to prove to him we had the deviceAnother technician came back todayThis is harassment and they will not stopThey ring the bell incessantly and bang on my doorI am going to call the police if they return