My experience has been that Coyle is quite reasonable about simple human error, and emailing support gets quick results during business hours. I can't imagine them assigning something you didn't ask for unless it was a simple mistake. Whether you committed the error or if it was a scheduler error, I suggest that you just tell them that if you applied for the shop, it was an error, sorry for any inconvenience.
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up, up, down, down, left, right,left,right, B,A, start.