How can I restore corrupted purchase download for my second Apple ID without 90-day ban

Question

Hello!
The common thing leading to problems with Apple ID — I changed the country.
I have a lot of software / music that I bought in AppStore/iTunes for my previous country, however recently my previous credit card was, say, gone, and I don't want to revive it for the moment. I've paid a dept (it was hard to find a way to pay a dept in a country where there's no gift cards, but it is another story) and decided to change the card to None not to mess with new debts (and it works).
I've searched through a lot of forums here and I found that it is pain to change country for an existing Apple ID (it leads to problems updating software not accessible in other country AppStore), so I've created another, new Apple ID and attached it to a new credit card.
Few days ago I've purchased several music albums with the new Apple ID and it started downloading it to my iPad, but the connection in the end was bad (I've started downloading with Wi-Fi and some time later forgot this fact and moved out of the hotspot, while songs continued to be downloaded), and iTunes downloaded just several songs from some albums and haven't downloaded several complete albums, while removing them from download list (and I am sure that I haven't cancelled them manually!). Now I have just parts of the albums, but when I try to re-downoad them from iTunes, it says that my Apple ID will be blocked to be used on this device for 90 days if I will do it — Agree / Cancel. So I cancel all the time.
I don't want to make this new Apple ID primary on any device since I use truly a lot of software and listen a lot of music I bought for an old account and I have no such in new one. However, I can say, "let's this iPad be the source for the new music I've bought and I will listen the old music on some other Apple device I have" (but what if I'd have none?), but there seems to be no way to do it, since I will also lose all previous software on this iPad if I will make this ID primary.
Auto-downloading is totally off for both accounts, however, as I understand, it is an issue with iTunes in the Cloud.
Is there a way to resolve it or it is just another post of pain? I actually bought music for both accounts, it seems to be something illegal with the fact I can not download it without limitations.

Answer 1

Not so. All my computers are bound (authorized) to the old Apple ID and I don't want to change it because, as I get it, then I will lose all the software I need (I mean, updates/re-downloads and that stuff) for 90 days (among with music I previously bought, but it is secondary). Also I can not authorize any other computer for my id (unless their owners are not my enemies ) because they will be in the very same situation.
Re-downloading music/purchases second time (and iTunes treats that failed one as the first one, like "you got these files", while actually I'm not, for all devices where I login with new Apple ID) requires authorizing computer or device to the new Apple ID which sequentially bans all re-downloading for 90 days.
I know everyone is tired here of posts like this one, I see there are a lot of similar discussions, and I also think that it is required to do something to solve al least most of problems of guys who change countries and this strange re-download restriction (I understand it's about security and downloads fee). So it is discussed a lot here and may be something changes, and anyway if not, my post will do not add something new to it. I have a single problem I hope will be resolved, because I bought this stuff and I can not use this stuff (even if I'd be stupid enough to cancel this downloads by myself — I own this stuff, files are still fragile things, even when they are spread to the clouds), digital purchases in iTunes are still not like non-digital where I have guarantees.