dnahelp

Hi there, new to the boards and new to really studying genetics other than basic biology. I have just undergone a dna test with some possible relatives and I have no clue how to read the results. I do not understand why some areas are matching yet I have a 0% chance of being their relative. Also I do not understand why my race was left blank and theirs was all filled in, is this something the lab saw from the dna results, something they just forgot to fill out when collecting samples or saw my married name which isn't typically caucasian and didn't want to fill it in despite my photograph looking very caucasian. Any help is appreciated and how to I understand my results and what all these numbers mean and what exactly was tested? Should I try to hit up a local college student to help me understand the results? I really want to be confident in these results, and don't want any doubt left. I know it is rare for there to be mix ups in the lab, but I was really expecting a positive result or inconclusive at the very least. Thanks