The area code duplicates the contacts

+54 Argentina

341/0341 city code

15 (it's a cell phone number)

9 (if you use WhatsApp)

Example of the same telephone number

+5493412755626 or

+549341152755626

+543412755626 or

+54341152755626 or

+54903412755626 or

+5490341152755626 or

3412755626 or

341152755626 are all the same number

Please review this for better CRM performance