Xbox live subscription card 14 days already used

Mine has done the same for 14 day free trial. Says code already used but no live subscription is available

The code that comes packed in the Xbox One (Day One Edition or standard edition) is indeed a 14-day trial. The can be using on an Silver account. If you already have a Gold account then the trial card will not work. If you are already using another 14-day
trial card, using this one before the end of the first trial card will not "stack" the cards and you will only have 14 days from the time you redeem it. Hope this answers your questions. If not let us know and we will be more than glad to answer.

Are you using a 14 day trial or a card for a month or more?

Because the 14 day trial cards don't give you the full 'gold expirience'.

If you have a subscription for a month or more, remove your profile from your console and redownload it again.

As Smwutches alludes to, a 14-day Gold card is considered a "trial" subscription. The minimum for a full Xbox Live Gold membership, which would include the ability to access cloud saves, is one month; there are also three and twelve month cards available.

Before I go forward with a year subscription I redeemed a 14 day subscription. I did this through the Xbox 360 and it stated I had a 14 day Gold trial. However, nothing happened. I called tech support who was not helpful. I went on line and looked at
my account and there was no record of the 14 day trial. On my 360, I am not considered gold and there is some kind of error as in my account settings it says 14 day trial but I have no gold status or abilities.

I then decided to use another one of my codes that I have never used before. Directly into Xbox Live's website, I entered the 14 day code hoping this would resolve my issues. Although the code was accepted and I was to have a 14 day GOLD trial... Nothing
changed and there is no mention of the subscription anywhere.

Lastly, I have lost trust in my entering a code. I have a one year subscription card that I can use that a family member said they would give me.... However, I believe it would just be swallowed up like the last two attempts.

Any thoughts?