Logging in

I will start from the beginning.

My hosting is through GoDaddy. I built a WordPress supported site on my (.net) account. I had a site (which is not supported by WordPress on my (.com) account that I took down. I put all of my (.net) on my (.com). I didn’t change the administrative portion of the (.net) site to (.com). Is there a ‘backdoor’ so I can change it to (.com) so I can log in to my dashboard?