The Agent shall send to each Lender, the Swap Bank, the Security Trustee and each Security Party a copy or the text of any notice which the Agent serves on the Borrowers under Clause 19.2; but the notice shall become effective when it is served on the Borrowers, and no failure or delay by the Agent to send a copy or the text of the notice to any other person shall invalidate the notice or provide any Borrower or any Security Party with any form of claim or defence,