12  Cumulative Rights and Enforcement

12.1  Any rights and remedies provided for in this Deed whether in favour of the Service Provider or the Authority or the Independent Certifier are cumulative and in addition to any further rights or remedies which may otherwise be available to the parties.

12.2  The duties and obligations of the Independent Certifier arising under or in connection with this Deed are owed to the Service Provider and the Authority both jointly and severally and the Service Provider and the Authority may accordingly enforce the provisions hereof and pursue their respective rights hereunder in their own name, whether separately or with each other.

12.3  the Service Provider and the Authority covenant with each other that they shall not waive any rights, remedies or entitlements or take any other action under this Deed which would or might reasonably be expected to adversely affect the rights, remedies or entitlements of the other without the other's prior written consent, such consent not to be unreasonably withheld or delayed.