Duct cleaning call. It sounded like it was coming from a very noisy call centre somewhere in India or Pakistan, judging from the caller's accent. Told him where to go in no uncertain terms. No point telling these parasites to take my name of their list, they're not based in Canada and don't have to abide by Canadian law. The companies they represent might be based here but they evade any attempt at giving you a phone number so you can report them.