1. The "ported to" Operator (recipient) may refuse to port a short number or a number used for information or other such services.
2. The"ported to" Operator may refuse to port a number that would clash with another number or code that is in use, or is planned to be used, in its network.
3. The "ported from" Operator (donor) may only refuse a port for the following reasons:
- The number is not a valid number on their network;
- The number is excluded from number portability as provided for by the Regulations;
- For a post paid subscriber; the number, account number and/or account holder’s identification number do not match;
- The classification of the account does not match, for example a request is made under the prepaid procedure for a post paid account;
- Subscriber is already subject to suspension of outgoing or incoming calls because of failure to pay a bill;
- The number is already subject to a porting process;
- The number has already been ported in the last two months;
- For a corporate; the number and account number do not match, or the port request is unauthorized; and
- Any other reason agreed to by the Authority (ICASA) and notified to the Operators in writing.
4. The donor side shall not refuse a port because a post paid subscriber still owes money, nor may they delay the porting until such debt is collected, unless the subscriber is already subject to suspension of outgoing or incoming calls because of failure to pay a bill.
5. The donor side shall not reject a port because the subscriber’s terminal is locked to that operator’s network.