I made the application two hours ago. However, I made a mistake. I did not realise that there was a MyAddress and a Myaddressa (with a little 'a' added) version of my address, both registered under my postcode. I mistakenly selected the Myaddressa option from the scroll (my bank statement, which I sent as proof of address, however, does show that I live in MyAddress without the a). I did not realise there were two different addresses that were so similar, because I only moved in very recently! I am so anxious right now because I have read stories of how unfair and brutal the Home Office can be when people make the smallest mistakes in their applications and I am terrified of getting into huge trouble now, when in truth I was only trying to do things as correctly as possible! What can I do to rectify this mistake? Should I contact the Home Office by email? Should I send another application? I am extremely, extremely nervous right now!
Thank you in advance for your advice.
P. S. For contenxt, I want to specify that nothing else is out of place in terms of my status. I have private healthcare (a plan which has already been approved by the Home Office when they granted me my Registration Certificate), and everything else in order. But I made a human mistake with my application

So far, I have only found a number EU citizens can contact the Home Office at. I would prefer an email address both because I would like some written proof that I have tried to rectify my mistake, and also because last time I spoke to someone from the Home Office (to inquire about how to get a registration certificate) I was treated so rudely, with so much disgust and contempt, that I would rather avoid repeating the experience if I can.