It won't let me file and keeps saying I've used the same phone number 5 times, which I haven't, and Ive tried changing the number to four other numbers and it won't work

this is what I keep getting - 
your transmission didnt go through - Turbo tax was unable to send your return to the intuit electronic filing center, for the following reason: Transmission Failed: The IRS allows taxpayers to electronically file a maximum of 5 federal returns with the same phone number. This phone number has already been used to file 5 returns....By selecting continue, you can print and then mail your return(s). Professional taxpayers should use a professional product to e-file multiple returns.