Here maps Android - problem deleting maps

[RobinBanks]

Condensed version:
Here maps won't delete my saved maps. Neither will uninstalling the app.
They remain on the SD card but disappear from the Here list.

Is this right?

Full version:

I've been using Here as my main satnav for a while now and I really like it. I installed it on a Sony Xperia Z2 with KitKat on it and have since updated the phone to Lollipop.
Since I downloaded it about 6-8 months ago I've just used it offline with the entire Europe area map stored on my micro SD card but I decided to free up space and just download European maps as and when I need them.

So I tried deleting the map through the app but it just wouldn't do it. It disappeared from the list of maps and made about 20MB free.

Uninstalling the app also wouldn't do it.

Eventually I put the SD card into my laptop and deleted the whole thing that way. It was around 14.5GB.

Can this be right/normal? I would've thought it should delete residual files when you uninstall it. And also that the app should be able to do it - if you want a map of Albania just for one week that you're spending there with a hire car, why keep it forever?

[RobinBanks]

I will just keep it as it is and delete maps when I have to using my laptop. I will ask on the forum at Here too.

I just need to remember to download voices when I do that too. I was caught out by that this morning.

[RobinBanks]

I've just got round to looking for a forum to raise this issue on but I can't find anything. Am I being stupid?

[RobinBanks]

Great, thanks

[RobinBanks]

Thanks, I will write my message in!

[RobinBanks]

That's sent and confirmed as received so if anyone is interested I'll update this thread when I hear a reply.