Google cross references the NAP on your website, your Google Business Profile, directories and social profiles. Variations, such as Ltd on one and Limited on another or two different phone numbers, read as two different businesses and weaken both.
For a Ghanaian business the practical version is: one phone number formatted one way, one address, one name, on the site footer, the contact page, the Organization schema and every profile. Our Google Business Profile checker tests the listing side of this.
Our own Organization schema carries the Accra address, the phone number and every social profile for exactly this reason.