In Portugal I was in almost exactly this position, so I understand the nerves. The receipt covered me for staying, and I never had a problem inside the country: the bank, the landlord and the health centre all accepted it once I explained what it was.
Travel was a different question. I asked four people and got four answers, including one from a friend who'd done it without trouble and one from a friend who had a very long conversation at the airport. In the end I decided the only answer that mattered was the immigration office's, so I asked them directly, in writing, with my receipt number and the dates of the trip. It took three weeks to get a reply, which I'd factor in given your November date.
Their answer applied to my permit type and my nationality, so I won't repeat it here as if it applies to you. But having it on paper meant that if anyone questioned me, I could show them the office's own words. That was worth more to my peace of mind than any forum post, including this one.