M&S Promo Codes for December 2025: Classic Style, Low Prices

How to Apply an M&S Promo Code

Using an M&S promo code is easy, you just need to follow these steps:

1. Sign in to your account at M&S official website. 

2. Add your desired items to the shopping bag.

3. Go to your shopping bag, type the promotional code into the ‘Enter promotion code’ box.

4. Click ‘Apply’. Your discount will appear in the order summary box and the estimated total should change.

If your promotional discount isn’t showing:

• Ensure the promo code has not expired.

• Read the terms and conditions for the promotional code. 

• Check you’ve entered the code correctly, ensuring there are no empty spaces.

About Marks & Spencer

Marks and Spencer (M&S) is a leading British retailer bringing exceptional quality, great value food, clothing and homeware to millions of customers around the world. With a legacy built on trust, value, and British heritage, the brand has expanded globally while maintaining its distinct identity.

M&S Food sells sustainability sourced products of exceptional quality and value. M&S also offers exceptional style and quality at everyday trusted value in Fashion, Home and Beauty.

From versatile everyday wear to gourmet meals, M&S aims to offer something for everyone - without compromising on sustainability, innovation, or elegance.

M&S Return & Refund

You may return unused products within 35 days of purchase with a printed return note. All returns should be made in their original condition:

• Item(s) should be in an unworn and unused condition.

• Multi-pack items must all be returned together

• 3 for 2 items can be returned individually but will be refunded based on the promotional price paid.

• If the original purchase contained a free item, this item must also be returned.

• Items with hygiene seals must be returned with the seals intact ( swimwear, underwear, duvets, etc).

Exceptions: Bra, accessories, earrings for pierced ears, open beddings or face coverings.

If you need to return a damaged/faulty item, you should email to the M&S customer support team address.

M&S Sparks Loyalty Program

Sparks is the free loyalty program from M&S, where members get rewarded for shopping. Membership benefits include: 

• Exclusive perks: You’ll enjoy insider perks, like early access to promotions and exclusive discounts.

• The chance to get your order for free: Each month, one customer will receive a full refund on their order.
  
  

• Personalised offers: You’ll receive personalised offers based on the things M&S knows you like.
  
  

• Celebrating the special moments: You will get a special treat on your birthday and Sparks anniversary.

How Sparks work: 

1. Log in to your account to see the active offers on your Sparks account.

2. To find out more about each of your offers, just click on the individual offer icons.

3. When you’re ready to check out, M&S’ll automatically apply your offers to your basket.

4. If you want to save your offer for another time, simply remove it at checkout.