I wasn't going to tell y'all about this cause

(yes that's my shame face). I will try to make this short.
So weeks ago, I went into the post office to get my invites weighed and buy some postage so I could start putting them together. It came up to 65 cents a piece (not including the forever stamp for the return envelope). Ok cool. Fine. At that point I sent my mom's invite to AZ since she is yet to see the invitations. I also wanted to see how it would do since they wouldn't let me hand cancel. She got it ok, no problems.
Last week, I went back to the post office to get my international invites weighed and sent off and also purchase additional stamps. This time the person I spoke to said that my invitations were "non-machinable" and I had to pay 20 cents extra to send them out. So I explained to him, that last time I was in there, I was told they were 65 cents, I sent one to my mom and she got it fine. He was like, well, it probably just slipped through. Usually what happens is that it comes back to you or the person on the other end has to pay the 20 cents to get it (never heard of this).
I was like ok, dude, whatever. So I sent out my invite to the white house with just the 65 cents to see if it would come back to me. Haven't seen it back in my mail box yet. Then I proceeded to look up the rules as to what qualifies as "non-machinable" mail. He said that because of the slight bump on my envelope that was created by the ribbon, that it is possible that it gets caught in the machine and rips (WTF?!?!?). I read the rules and it says if a string or some other weird enclosure clasps is on the outside of the mail then it's non machinable.
So I went in there yesterday to buy more stamps. And as soon as I saw his face I was heated (mind you I was already pissed off that FI picked me up and I looked in the back seat and there is a tire sitting on my leather seats WTH!?!?). So I turn to him and said, sir, I think you overcharged me on my international invites last time I was in there. I told him I read the rules and my invites do not qualify as non machinable. He said it did, I asked him to bring me the rules, he couldn't find it, then all the other folks at the counter started getting involved (thank God I was the only one in there). Needless to say it went way out of control, I guess I felt sort of attacked cause all of them were talking to me. So I started to raise my voice and I don't think I could repeat any of what I said...LOL. All over an extra 20 cents...LOL...
But I still am not sure what to do...after all that...all my invites now have a 65 cent stamp on them and I am scared s*itless that they come back to me or my guests have to pay 20 cents to get them?!?!? (when has that ever happened?)
I guess I will send out one more as a test....

I keep trying to tell myself not to stress....
Vent over...
Happy Friday!
(this was nowhere near short)