Incomplete porting

My business main line / mobile number was supposed to be ported over for both phone and SMS. The prior carrier has completely released the number. The SMS didn’t get ported and we’re being told by Ring Central it’s an issue with the prior carrier and not them porting incorrectly. I have confirmed with the prior carrier they have completely released the number and there should have been no issues. This has been affecting my business for 7 days and support is not doing much to assist.  It is currently registered as required under a larger company acct / umbrella.