As you point out 01274568211 is the main switchboard its been mentioned many times before.
The 0871 200 9000 number is for sales.
The customer service number can be found under FAQ. Contact Us
http://www.damart.co.uk/questions-frequentes"If you have a query which relates to your Damart Select Personal Account such as a return or payment not showing on your personal account statement, to set up or amend a Direct Debit, or to change personal account details you can email us at customerservices@damart.com or call call
0330 123 5429 between 09:00 - 17:00."
Could an admin please update this.Thank you.