Possible enumeration values:
| Name | Value | Description | 
|---|---|---|
| Null | 
                     0  | 
                
                     N/A  | 
            
| Unknown | 
                     1  | 
                
                     Payment type is not provided by the Mobile Service Provider.  | 
            
| Prepaid | 
                     2  | 
                
                     The mobile account is a Pre-Paid account.  | 
            
| Hybrid | 
                     3  | 
                
                     The mobile account is a Hybrid account.  | 
            
| Postpaid | 
                     4  | 
                
                     The mobile account is a Post-Paid account.  |