Site will not let me log in on my iphone

Says "your username and password did not match". Anybody else have this issue or know how to fix it? Obviously I can sign in on the PC.

Lol, i-phone. I know the "i" probably just blended in up there. I am pretty sure it's a 5 but I don't know. I have tried using my username and email address. And I know the password because I logged in today with it on computer.

I do too. Works now. Kind of odd. I swear I have had this problem for a couple of days and just thought I had been on a time out or something lol until I logged on with a PC yesterday. Then it still didn't work on my phone I decided to ask and now it worked. I definitely wasn't typing it wrong and tried with email and username. Go figure. Oh well works now. Thanks.

You might have been having issues with the iPhone's keyboard throwing in a capital character or two... or perhaps it was autocorrect that was causing the issue...

I know when I use my iPhone 5 for anything on the internet (like surfing here or elsewhere) I have to be careful that the phone doesn't change any characters I'm typing because it thinks it knows better.