Traveling to Canada -How to request unflag

[SF2007 48]

Hi,

 

Before my now Husband petitioned for my K1, I was informed at the border by CBP in secondary that I had visited enough for the year and would need to withdraw my petition for entry and apply for the visa to be able to visit again. I did and waited for the visa to be issued to attempt a border crossing. My now husband and I went through the K1, got married, and I have since obtained my citizenship. Couple years ago, my husband, children and I visited relatives in Canada. I was traveling with a GC at the time and I was instructed to go to secondary to get cleared because of my past "offense". Not a big deal as CBP clear me right away, but we were held up for 45 minutes and ended up missing our connecting flight. They said whenever I would travel abroad with my GC and had to go to the "self declare" booth, I would be pulled into secondary. Nothing they could do.

 

I since had my naturalization interview and the IO never mentioned the "offense". I did however, to make sure there was no oversight, and the IO told me I could request to clear that off my file after having obtained citizenship to avoid having to be delayed on future trips.

 

Now,  the IO told me to call, but the catch is my local USCIS office doesn't take calls. Nor have they had any available appointments to book online. I have no way to reach them. I tried to look online if there was a form to file a request, but couldn't find anything.

 

Does anyone have an idea what I should do? I am planning a visit to Canada this year and was hoping to clear that before the trip to avoid the inconvenience. 

 

Or maybe now that it'll be my first time crossing the border as a USC with a US passport, I won't be flagged anymore and it's become a non issue...? Anyone has had a similar experience?