I bought the Cert, But there is another tax buyer involved now!

[Rashida Kharkhariwala]

I have a tax cert that I bought in Scav Sale, I bought and paid all the taxes until 201x, I also paid the taxes for 20(1x+2), but while i was paying the sub-tax for 20(1x+2) installs, I was told that 20(1x+1) has been bought by another tax buyer at the 20(1x+1) sale. 

How does this transpire for me? Do I redeem this guys 20(1x+1) taxes? A bit confused. I have reached out to my attorney on the same as well, but want to know BP tax cert investors opinion on the same as well and see if anyone came across this scenario and what was there course of action.