Removing DID from SPAM list

[kabimas66]

I have a customer who has a main number DID appearing as SPAM on VERIZON phones.

I was recommended to open a request to "Free Caller Registry", and they recommended me to go to: https://www.voicespamfeedback.com/vsf/ to report this issue.

I connected on that site and report my DID.

My question now is:  how long I should wait to receive an answer or get this solution implemented ( removing my customer's DID from Verizon SPAM list.???

If somebody knows another portal to connect for these kind of requests, will be welcomed any help.

THANKS SO MUCH IN ADVANCED.

Best regards

Enrique 

[edited for privacy]