have your brother in law add an old cellphone to his family plan with a new line/number, and put that into your name. I'm a gadget freak, I have half a dozen phones, easy to rename one.
Also, in the US, you could achieve your goal by sending instructions to the company with a "notarized" letter. The Notary is a person licensed by the govt to swear that the signature is your signature, and you can send them the written instructions and they have to follow them, it has the same force as you being there.
On an international basis, you can achieve the same "notarization" by visiting a United State Consular office and they will check your local passport etc. and certify under United States law that you are the person sending the letter. https://travel.state.gov/content/travel/en/records-and-authe... (aha! it's called an Apostille)
It's a legally binding thing that, for example, someone with your power of attorney can act on your behalf. Companies have to accept mail, etc. People can be incapacitated, and that doesn't give a company a right not to respond.
Also, in the US, you could achieve your goal by sending instructions to the company with a "notarized" letter. The Notary is a person licensed by the govt to swear that the signature is your signature, and you can send them the written instructions and they have to follow them, it has the same force as you being there.
On an international basis, you can achieve the same "notarization" by visiting a United State Consular office and they will check your local passport etc. and certify under United States law that you are the person sending the letter. https://travel.state.gov/content/travel/en/records-and-authe... (aha! it's called an Apostille)
It's a legally binding thing that, for example, someone with your power of attorney can act on your behalf. Companies have to accept mail, etc. People can be incapacitated, and that doesn't give a company a right not to respond.