He probably went to rabbis not known for being the most welcoming towards gerim.
Also, as a ger, you should learn on your own, convert, and then sit a year in yeshiva. It makes no sense for a person to do something as a goy that they can get so much more schar for as a Jew.
Ii would suggest going to R’ Manny Vinas for assistance. He has a beis din along with his rebbi, R’ Aharon Ziegler, a dayan in Boro Park.