Billable Trait throws BadMethodCallException Method newSubscription() does not exist, why?

Model

<?php

namespace App\Entities;

use Laravel\Cashier\Billable;

use Prettus\Repository\Contracts\Transformable;
use Prettus\Repository\Traits\TransformableTrait;

use Illuminate\Notifications\Notifiable;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Foundation\Auth\Access\Authorizable;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;

class User extends Model implements AuthenticatableContract, AuthorizableContract, CanResetPasswordContract
{
    use Authenticatable, Authorizable, CanResetPassword, TransformableTrait, Notifiable, Billable, SoftDeletes;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
    'name',
    'email',
    'password',
    'account_type',
    'stripe_id',
    'card_brand',
    'card_last_four',
    'trial_ends_at',
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
    'remember_token',
    ];
    protected $dates = [
    'trial_ends_at',
    'ends_at',
    ];
}

Controller

<?php

namespace App\Http\Controllers\Auth;

use App\Entities\User;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Validator;
use Illuminate\Foundation\Auth\RegistersUsers;

class RegisterController extends Controller
{
...
 protected function create(array $data)
    {
        $stripeToken = $data['stripeToken'];
        $user = User::create([
            'account_type' => $data['account_type'],
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
            ]);

        $subscribeUser = User::where('email', $data['email'])->first();
            $subscribeUser->newSubscription('individual_subscr', 'individual')->create($stripeToken);
             /// here goes error
      

\Foundation\Auth\User

namespace Illuminate\Foundation\Auth;

use Illuminate\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Foundation\Auth\Access\Authorizable;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;

class User extends Model implements
    AuthenticatableContract,
    AuthorizableContract,
    CanResetPasswordContract
{
    use Authenticatable, Authorizable, CanResetPassword;
}

Error

BadMethodCallException
Method newSubscription() does not exist.

Have tried:

use Laravel\Cashier\Billable;
use Prettus\Repository\Contracts\Transformable;
use Prettus\Repository\Traits\TransformableTrait;
use Illuminate\Notifications\Notifiable;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Foundation\Auth\Access\Authorizable;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;

use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Auth\Authenticatable as AuthenticableTrait;

class User extends ***Authenticatable*** implements AuthenticatableContract, AuthorizableContract, CanResetPasswordContract
{
    use ***AuthenticableTrait***, Authorizable, CanResetPassword, TransformableTrait, Notifiable, Billable, SoftDeletes;