3 separate error codes from the store

These are the current issues associated with those codes.

Most likely it is the Xbox Live service issues on Xbox's end due to a high volume of uses at the current time.

The Xbox One console doesn't have the latest update.

The Xbox Live Service is temporarily unavailable.
The console is having trouble connecting to Xbox Live.
The game or app download may need to be canceled and then downloaded again

unfortunately not unless it is something extremely serious like a crime or fraud you would have to contact the technical service by phone and they would tell you the steps you have to follow I suppose that the thing will not be so much a greeting

Do you mean the digital download from games on demand? I don't think it comes with a code. To get it with a code you need to buy the retail copy brand new from a store or in your case download it separately from the in game store for an additional fee.

Thanks, I guess I gotta get a new code. On a completely separate note, could I buy 3-Month Gold on the microsoft store? Is the digital code being sold there only for US accounts? or does it automatically assign you a code for your region?

If you saw the offer on the console then it had to be purchased from within that offer. Sorry but purchasing a separate code and adding it will not include an extra 3 months unless that code specifically said it.