So apparently I was fired for two no call/no shows. But I had called my employer!

Here's the scoop:

I tried, but wasn't able to get 2 of my shifts covered. I called the lady who does the scheduling and approves time off, and she said that it would be ok. I work at a nursing home, and we lost a bunch of residents to new facilities that opened up. So the company was cutting hours anyway. When I spoke to her, she never indicated that it was going to be a problem. She never crossed me off for those two days, but she circled them. A few nights later, I find somebody to cover one of my shifts, so I called the scheduling lady and told her that I had a replacement. She once again said "ok" and never indicated a problem. But she never marked it on the schedule that this new lady was going to work for me. /// The first day that I didn't get covered, I get a call from my employer asking if I was going to be in. I told them that I had talked to the scheduling lady and she had ok'd it. Again, nobody indicated any problems. Then, the night before the girl was suppose to cover my shift, she texts me and tells me that she can't make it. I tell her that one of us is going to have to call our employer and let them know. Being nice, since she had finals, I offered to call. I called the scheduling lady again and she said "ok" and never indicated a problem. But again, that day, I get a call from work asking if I was going to be in. I explained the situation and nobody indicated any problems. THEN! The girl felt bad, so she called our employer and said that she would be willing to come in for a few hours. One of our supervisors told her not to worry about it because they already found a replacement.

Now, 2 days later, I find out that I am fired because I pulled 2 "no call/no shows." I called my supervisor to fight for my job. She told me that the scheduling lady said that I never called her, that she called me. And that she told me that I NEEDED to be there. This never happened. Because I would have dropped what I was doing to go into work. I loved my job. Then she told me that the girl who was suppose to cover my shift told her that she never said that she would cover it in the first place.

So, bottom line: Everyone is lying. I don't know what to do.

Is this wrongful termination?