Whatsapp sender messaging limit is null

Issue Summary

When I try to send message from whatsapp number to whatsapp number I get error: Account exceeded the null daily messages limit. It's very strange that null value is assigned to limit variable. Please set real value instead of null

Steps to Reproduce

1. Send whatsapp message
2. Get limit error

Code Snippet

client = Client(account_sid, auth_token)
 message = client.messages.create(
            from_=f'whatsapp:{from}',
            body=body,
            to=f'whatsapp:{phone}'
        )

Exception/Log

twilio.base.exceptions.TwilioRestException: 
HTTP Error Your request was:

POST /Accounts/<account_sid>/Messages.json
Twilio returned the following information:
Unable to create record: Account <account_sid> exceeded the null daily messages limit
More information may be available here:
https://www.twilio.com/docs/errors/63038

I can provide account_id if necessary

Technical details:

• twilio-python version: 9.2.3
• python version: 3.11.6

Start by reproducing the WhatsApp message request with twilio-python 9.2.3 and inspect the returned TwilioRestException, including error 63038. Determine whether the null daily limit comes from this client or the Twilio API; done means identifying the source and confirming that the resulting error reports a real limit instead of null.