Why am I getting a reassessed refund check from a tax deed

[Annunciata R.]

Maybe someone can help me on this, I bought a few lots at the last LA tax deed auction in October. Judging from the tax accessors values online, all the lots I purchased cost less than the last value. Last week I got a check in the post for about $400 . I dont understand how I would be entitled to it as opposed to the previous owner. The value of the property was $90K and decline in value puts it at about $80K, I paid $21K. Im not complaining about the cheque but if I am entitled to the cheque am I right to assume that more cheques are forth coming from the remaining lots I purchased if a revaluation is triggered.