In order to limit (let's not dream) the creation of "bogus" clubs to take advantage of the benefits granted to level 1 clubs, in particular through dubious transfers, I propose the introduction of a double authentication system (sending an SMS, for example) to :

• create a new club
  but also
• put a player on the transfer list
• buy a player from the transfer list
• possibly also to carry out certain operations such as launching a build or loaning a player

Even if some clever people use a 'friendly' phone number to create a bogus club, they'll no doubt find it difficult to keep the club going in the long term and even in the short term, as I think the admins could have a database that would allow them to see the phone number associated with the club and identify duplicates.

I'm curious to know if there are any technical obstacles to setting this up. In any case, my bank knows how to do it, my tax office knows how to do it, almost all the service providers I use with a login know how to do it, etc...