My computer is in my neice's name

[DotMulh]

My card is my name .  What you are sending me is my neices information.  That's why I fail to fill your form outl

[BeemerBiker]

 This is a user to user forum.

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The below is all know about instant ink.  Hope I am not oversharing.

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Try here at the Get HP Instant Ink Support Website
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Contact the team at HP Instant Ink Support during business days and hours available in your region.
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General help on instant ink management

I do not have an instant ink printer. My understanding is that if you run out of ink, or you cancel your subscription, you can use genuine Hewlett Packard cartridges either original or refilled. They must have an HP chip in the cartridge.
The below type is unlikely to work.

Note that this is a user to user forum and I am just the messenger of this bad news: Instant ink cartridges can only be used when the ink subscription is active.  

Some HP printers can use non-HP ink

Instant ink portal is here.

Below are some official guides that might answer one or more of your questions

Instant Ink account management

Solve Instant Ink cartridge and printer problems

Instant Ink shipment questions

Fixing Instant Ink cartridge errors

Enrolling in HP Instant Ink

Cancel your ink account

HP printers - Fixing Instant Ink enrollment error codes (HP Smart app)

HP printer ink cartridge issues including 'Incompatible', 'Missing', 'Failure' and enrollment errors

Check HP printer ink or toner levels

Terms of service including phone contact information

Instant Ink - Terms of Service - USA
Instant Ink – Terms of Service - UK
TERMINI DI SERVIZIO DI HP INSTANT INK - Italy
Instant Ink - Terms of Service - Ireland
CONDITIONS GENERALES D’UTILISATION DU SERVICE HP INSTANT INK - France

While HP Instant Ink printers can be used with no subscription, select HP Plus printers may require a subscription to operate.

Let me know what you find out.