John is a minor who lives with his mother and stepfather and not his guardianDavid (Johns biological dad). John has always been busy assisting family and friends doing odd jobs allowing for John to be financially independent. While living with his mother, John is able to contribute towards his accommodation. John's guardian does not exercise any control over him and has allowed John to live as a major. John recently opened a bank account unassisted by his guardian and later entered into a cell phone contract withSam which he has now defaulted on.

With full reference to the facts above case, adviseSam fully on his legal rights should he choose to recover his money from John the minor (Refer to relevant case law)