Same situation, however, it has been some time.
Keep that persons phone number and name handy!!! Call again, maybe next week. See what resolution they have come up with. Try vigrously to get a letter stating the facts of the situation. If you get the letter, immdeiately send copies to CRA's
Other than that you have a seven year wait for it to be removed or whatever the time period is.
But on another note, they can remove it if they are willing