It is apparently a so called Canadian pharmacy. They call my aunts cell phone daily. And when you try to ask to speak to someone to have your number removed they hang up on you....
1. Pretend you don't know English. 2. Or if you want to have some fun with them, talk to them in a foreign language or make up a language and start replying to them as though you don't know what they are telling you and they don't understand a word of what you're saying.