Efile limit

I purchased the Premier tax software download and e-filed 4 returns without any problems. I e-filed the 5th return and it was rejected. I fixed the errors the TT was telling me and e-filed again, and it was rejected again. I am now getting the message that my e-file limit of 5 has been hit and I cannot e-file any more returns. 
Can I purchase another software download to e-file a new return?