Yes, I did request and paid for priority appointment, but I don't think this is the issue! You are right I could have chosen the wrong province! I'm going to the Immigration Office and find out how I can change the location! Thank you for your kind info which helped raising the question if I've made a mistake when selecting the location!From what I know, this is not the regular case and I suppose you should have got/chosen a nearby location. Might be a mistake on your end. Have you checked your address? Selecting Buenos Aires province rather than the city of Buenos Aires is a common error for example.
You should be able to cancel the appointment though and if you are not familiar with the system, some professional support could be useful.
Even if you spent one day in Argentina the local police certificate will be necessary and they will happily issue it - But as I said you get it on the spot at Migraciones if you didn’t ask for a priority appointment.
Take care