Originally Posted by dboston1

It's likely that you may get away with both accounts since you didn't provide SSN previously. That said, I had some problems getting my SO's Serve with Isis account set up after canceling her BlueBird. According to tech support (which means this may not be accurate...), her phone number was the problem and they suggested applying using a different number. Again, anything Serve tech support says has to be taken with a huge dose of skepticism. But if you can't register on the first try, maybe try using a different phone number before canceling your other account.