Who called you from 0402486549 ?

I have been receiving calls from these guys at the US pharmacy since 2008. The calls sometimes stop for a month or so, then commence again for a few months at the same frequency you mentioned above. Many times they don't say anything just call and hang up. These extremely inconvenient calls have interrupted me at work (I'm a plumbing contractor sole trader) sometimes in dangerous situations like on a roof or with my hands wet etc. In the beginning 10 years ago I was polite and went through on the phone with them dozens of times, each time they assured me they wouldn't call again. After a few years of these calls I became very agitated (very very agitated) to the point where I was really out to get them. So I managed to trick one of the callers one day into telling me the address of the building they were calling me from. It was in Mumbai. I then told the caller that I was going to place a craigslist add in the area advertising to pay someone a handsome sum of money to go to that address and punch each of the employees working inside in the face and destroy any telephone equipment they could see. I explained how passionately I hated them and expressed my desire to cause them harm due to their deplorable conduct. I didn't place the add but it certainly caused a stir and I thought the threat of violence would be enough to stop them but I was wrong. My threats escalated and I thought of all kinds of things to say that might cause them to finally drop my number. Things including police investigations, me flying to Mumbai to visit them personally, threats to individual phone operators, I would give them updated false contact details, pretend I wanted to order things but never give payment details and I even told them a wild story that their phone call had caused someone to fall from a roof and they had dies as a result. They took the last one seriously at first but they still after everything continue to call, 11 years of calls from these *