I had submitted a request for a Residence permit and still haven't received any information about appointments to go to the city hall, since I understand I have to register in the city hall within 8 days of my arrival in Belgium and is going to be a week of my arrival here in Antwerp. Also, one of the documents I sent with the form is my residence permit from another EU country which is still valid, but since there are backlogs with residence applications here, maybe by the time I get an appointment to register my arrival in Belgium, my Dutch residence permit will have already expired... will there be any problems with that?