Inform other dept. our dept will change a new fax no.

Dear All,
Re: Supersession of fax number xxxx xxxx
Please be advised that the existing fax number xxxx xxxx for the _QQQQ____Department will be superseded by the new fax number yyyy yyyy with effective on _____(date)______.
Kindly update your record accordingly.
Best regards,
ZZZZ

Attention : All Departments
Please note that our Department will change to a new fax number : 123456.
Please note our existing fax number will be replaced by the new number with immediate effect.
Thank you for your kind attion.
Best Regards
_________
YY
XXXX Department

Dear all,

I am writing to inform our department will change the fax number to a new one, xxxx xxxx from (DATE/ now on). The old one will no longer be used.

Thank you for your concern

Best Regards,
xxx

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