According to legit ng here are the 3 things:
The GWR said: "We have not received an application for this attempt. Applications can be made via the Guinness World Records website for our records management team to review
The GWR said: "Once an application is accepted, the record claimant receives a set of detailed guidelines specific to that record category that must be adhered to."
"It takes up to 12 weeks in each process and possibly five working days if you choose and pay for "Priority Application."
"This (the guidelines) also details a list of evidence that must be submitted for our team to verify the record. Guinness World Records maintains a rigorous review process to maintain the integrity of each Guinness World Records title."