Need help with Default account

Hello,

As the title suggests Im at a bit of a loss as what to do. Along time ago I applied for a ID mobile contract and was accepted then the following day when the phone didn’t show up, it was declined. I never had a phone or an account ( other than what would of been initially setup during an application process)

Recently I’ve seen on my credit report a default was refreshed for a outstanding payment of roughly £16.

I contacted live chat and was informed I would incur the costs of a cancelation and could clear the account to close the case. I explained I never cancelled anything but that aside, with no account to use making payments becomes a challenge. In a following live chat chat I got a mobile number associated with the account and tried that via the automated system and its not recognized. So it seems I cant even make a payment for a account I never had. At this point id be happy to clear any outstanding debts just to have this removed as missed payments from my credit as I never missed anything.

If anyone knows how i can resolve this it would be greatly appreciated.

Thanks

James