Calls doesn't leave a message

I recieved a call from these people who asked for me while I was away from the phone. I viewed the caller ID, and made a call back, not knowing who had called. I was simply told, "'PSI' called for you, Brodie" I called back and heard the operator tell me thatt he mailbox was full.
Annoying

this number called me everyday twice a day for 2 weeks in January and has just started again.  They never leave a message.

Calls but no message left

This number keeps phoning me, I phoned it back and it said that I have reached the voicemail of ?? blank, there is no nameI did I reverse lookup on 411.ca and it said it was a landline in London Ontario with Bell Canada as the service provider

When they called me in february, The magazines were forced apon me! they said that i must purchase them, he even got mad. That was why he had to have his boss call me. I would not recomend anyone answering any of their questions! just habg up if you want to protect yourself!!!There is no way that anyone just gets entered into a sweepstake unless you entered yourself, or you let them convince you to enter. Maybee i am wrong but, i do not trust this!! Lets not let these lazy good for nothing people ruin what we have all worked so har for.....OUR LIVES AND HARD EARNED MONEY!!!!!RED FLAG THE NUMBER! PSI is a scam!!