18 March 2018 Tenant Name: Flat No.XXX Location XXX Subject: - Outstanding rent due payment (Location XXXXX) Dear Sir, We are writing to you regarding the outstanding rent from January 2018 till March 2018. kindly do the needful to clear the overdue amount of $00000 within 5 working days from the date of this letter to avoid further contractual complications. Please consider this letter an official delay notice and accept our apology for any inconvenience in this regard. Thank you for your prompt attention to this matter. Feel free to contact us for any clarification. N.B.: Contract Start 1st January 2018 and ends 30th June 2018. Yours Sincerely, >>>>>>>>>>>>> Commercial Assistant Company name