I have been trying to register my facebook whatsapp business account but it is not working. Am I using the correct api? Or what am I doing wrong? Note: I have passed the correct phone number id and a valid bearer token. This is the response i get. How can I resolve this issue? Has the endpoint changed?

Hello Meta Support Team,
I am currently working with multi-product lists in WhatsApp's interactive messages and have a question regarding localization. Specifically:
Does the platform support sending a language code along with the interactive message payload? For example, if I have a localized catalog (using the catalog ID), can I specify the language code so that the correct localized version of the catalog is displayed to the user? This feature would be incredibly useful for providing a seamless experience to users in different regions. I would appreciate any guidance, documentation, or examples regarding this functionality.
I appreciate your support!

I lost access to my WhatsApp number. It is not connected to my phone or to Meta Suite Business. It always gives me the error message "TRY AGAIN IN AN HOUR". The phone no longer exists within Meta Suite. Meta does not send the SMS. What should I do?

I created a new app, and did all the required steps; system users added my personal number as a test number for getting messages and verified it. On making a curl call it does say message sent but I did not recieve the message. I read here that I need to initiate the conversation, I added the contact and sent a "Hi", first it was not delivered at all, second,it did not send any message. I am trying to use FlowBridge to integrate Voiceflow but not working. Below is the Hello World curl request:

 curl -i -X POST \   https://graph.facebook.com/v21.0/505794375953552/messages \   -H 'Authorization: Bearer xxxxxxxx' \   -H 'Content-Type: application/json' \   -d '{ "messaging_product": "whatsapp", "to": "+923009290538", "type": "template", "template": { "name": "hello_world", "language": { "code": "en_US" } } }' HTTP/2 200  content-type: application/json; charset=UTF-8 vary: Origin x-business-use-case-usage: {"476948972175537":[{"type":"whatsapp","call_count":1,"total_cputime":1,"total_time":1,"estimated_time_to_regain_access":0}]} access-control-allow-origin: * facebook-api-version: v21.0 strict-transport-security: max-age=15552000; preload pragma: no-cache cache-control: private, no-cache, no-store, must-revalidate expires: Sat, 01 Jan 2000 00:00:00 GMT x-fb-request-id: AzyBpSOlGk337z5dcfK5xz9 x-fb-trace-id: HXfstE61zeT x-fb-rev: 1019058758 x-fb-debug: I+v2luvdeTX0UqrN91y82WqYcDyc5VVff3pfLc+7t1hEjZePGLoQ+M61pCNjx9Kuy1ZuymARjsB3c9eNPBeYKA== content-length: 207 date: Mon, 23 Dec 2024 05:14:56 GMT x-fb-connection-quality: EXCELLENT; q=0.9, rtt=23, rtx=0, c=10, mss=1380, tbw=3394, tp=-1, tpl=-1, uplat=540, ullat=0 alt-svc: h3=":443"; ma=86400 {"messaging_product":"whatsapp","contacts":[{"input":"+923xxx8","wa_id":"xxx"}],"messages":[{"id":"wamid.HBgMOTIzMDA5MjkwNTM4FQIAERgSQkVBMEJGRDAzQzU3NUYwNUIxAA==","message_status":"accepted"}]}%    

Jus to clarify my initial "Hi" message still has a single tick

We got this message when we tried to get an attachment comment for one of our accounts:
{
"error": {
"message": "Unsupported request - method type: get",
"type": "GraphMethodException",
"code": 100,
"fbtrace_id": "AoCtBAwgyPeW-UuNbJlvB2D"
}
}
Doing further investigation, we determined that the API breaks when attempting to get a story attachment for a comment. The API breaks unless I reduce the param request fields for attachments to id,attachment{media_type,title,type,unshimmed_url,url}, but we still require attachment.media and attachment.description for our capturing content process.
Has anyone faced this error before ? Are there any workaround to solve this issue ?