Grrrr! What's with my mail comming OPENED!!!

You know you want to just open your mailbox and find all of your mail neatly piled in the box..UNOPENED... Well, that's not the case around here!
Last year I had to go down to my post office in person to complain about the condition of my mail. Magazines were wet and really dirty, almost like they had been driven over with a car and some of my letter mail was partially opened!!
I have now reached my breaking point! Today, the mail man walked across my lawn AS USUAL ..did I mention that I'm not pleased about this either, he put the mail in the box and he walked down my driveway. I opened my door, reached into the mail box and pulled out a hand full of envelopes and fliers.
What a shock!! The thick envelope I received from BzzAgent had been tampered with! It was opened across the seal 3/4 of the way and torn up to the seam! I have no idea if anything had been removed from the envelope! This has been happening on a continuous basis and I think it is not only upsetting, but, also a huge breach of my privacy!
Just last week I had mentioned to my friend Brittany how frustrated I was when I received some powdered nutrition samples for Jack. These samples came in a box sealed with a circular sticker on both ends. One end had the sticker peeled away and the corner of the box opening had been torn as if someone had opened it by sticking their finger inside and opening the box.
There are many more stories like these and I am not feeling as forgiving now that it has been going on this long and it is happening a lot more frequently!!!
Instead of throwing a "Jack-Like" tantrum, I instead chose to call the Canada Post customer service number I found on the web. I was on hold for 15 minutes and after explaining my concerns to the very pleasant operator on the other end, I was assured that this matter would be investigated and after she gave me an account number, she advised me that someone would be in touch with me in regard to this issue......Any guesses on how long this will take...????