M&M's UK Coupons & Promo Codes
mms.co.uk
3 Discount & Promo Codes October 2025
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M&M's UK coupon codes
- All [ 3 ]
- Coupons [ 0 ]
- Offers [ 3 ]
- Sitewide [ 0 ]
- Freeshipping [ 0 ]
15%
off
off
deal
15% off for students
Get 15% Off For Students When You Verify your student status with UNiDAYS
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20%
off
off
deal
20% off 1st order with motelrocks newletter sign-up
Receive 20% off your first order with motelrocks Newletter sign-up. Terms and conditions apply
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20%
off
off
deal
20% off for emergency services & more
Save 20% on all regular price and sale items. Valid for defence workers and emergency service personnel. Must have a Blue Light card or a Defence Discount Service card. Cannot be used in conjunction with any other offer which is available online. There is no minimum or maximum spend threshold.
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M&M's UK Expired Coupons
| Description | Code | Status |
|---|---|---|
| 25% off your order | VOUCHER16 | Expired |
| £5 off your order | HAPPYBDAY | Expired |
| 25% off your order | MUM4 | Expired |
| 20% off personalised m&ms | HAPPYBDAY16UK | Expired |
| 25% off your order | LOVE4 | Expired |
| 10% off sitewide | LOVE10-UK | Expired |
| 20% off your orders | DECORATION20-UK | Expired |
| £20 off every £150 purchase | WEDDING2017-UK | Expired |
| 10% off your order | HAPPY-BDAY | Expired |
| 25% off party favor orders | FAVORS25 | Expired |
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