Recontributing a withdrawal to an IRA

Hi, 

 

I have a bit of a complex situation.  I have two IRAs - a traditional and a roth.  I cannot contribute directly to the roth as I exceed the income limits.  So I contribute my $6000 max to the traditional and then I do a conversion to the Roth, i.e. the back-door method.  

 

In September I made a mistake and accidentally contributed $1000 directly to the Roth.  When I realized this I did a return of excess contribution with my financial institution (T. Rowe).  I got the money back but took a bit of a loss.  I got about ~$980.

 

So since in my view I should still have $1000 to contribute (I contributed $6000 and returned $1000).  Is this allowed?  I tried to do this on T.Rowe but they website will not allow me to initiate a transition because they're saying I hit my contribution limit.  They don't appear to be recognizing I did an excess contribution return.  

 

TIA for any advice.