acknowledgement letter fixed text

(1) (in CASS 7) the text in the template acknowledgement letters in CASS 7 Annex 2R, CASS 7 Annex 3R and CASS 7 Annex 4R that is not in square brackets.
(2) (in CASS 11) the text in the template acknowledgement letters in CASS 11 Annex 1R that is not in square brackets.
(3) (in CASS 13) the text in the client bank account acknowledgement letter that is not in square brackets.
(4) (in CASS 15) the text in the acknowledgement letter in CASS 15 Annex 1 that is not in square brackets.