How do i contact sainsburys in the uk? Sainsbury’s Head Office (London) The contact number for Sainsbury's is available directly from their website at no or lower cost 0844 381 0819 Calls cost 7p per minute plus your standard network charge.How do i contact sainsburys nectar card customer service? Sainsburys Nectar Card Enquiries 0344 811 0811. The details of the services and contact details we hold are listed below... Select the Service and View available Phone Menu details. You may also click to the Company Website and Contact Us pages, See/Add Facebook feedback comments. Please Report an Error if you find one and Rate the Service.How do i make a complaint to sainsburys energy? There are various ways you can make a complaint and get in touch, the fastest way is to Sainsbury’s Energy complaints number 0800 316 0316. You can also contact Sainsbury’s energy via a contact form located on their Help & Support section of their website, or message them through Facebook or Twitter.How do i contact sainsburys hr human relations? You can email Sainbury’s HR (Human Relations) at [email protected] or [email protected]. Yon can contact Sainsbury’s HR on phone number 08007076242. Yon can contact Sainsbury’s HR on phone number 08007076242.