In just a few days, the nation will be celebrating Afternoon Tea Week (11th - 17th August), a time to honour a quintessential British tradition. To commemorate this event, M&S customers can snag an Afternoon Tea Letterbox Gift, valued at £20, for a mere £5.

This box of delights will be delivered directly to your doorstep and includes a variety of cakes, biscuits, and teabags. The sweet treats encompass all-butter shortbread fingers, carrot and walnut cakes, Victoria sandwich cake, and Millionaire shortbread bars.

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To get their hands on this offer, shoppers need to register with the money-saving website Top Cashback. It provides new members with £15 free cashback when they sign up and make their initial purchase through the site.

New Top Cashback members and new Marks & Spencer customers can secure the Afternoon Tea Letterbox Gift for just £4.67 after cashback. Meanwhile, new Top Cashback members and existing Marks & Spencer customers can get the Afternoon Tea Letterbox Gift for £4.83 after cashback.

Elsewhere, The Cornish Company also offers deliverable afternoon tea boxes. Its Cream Tea Hamper contains scones, clotted cream, two types of biscuits, and tea bags for £22.95.

Cutter & Squidge is an online bakery that also offers a plethora of options. The Birthday Edition Afternoon Tea Hamper is now priced at £27.89 down from £31.99, and is packed with brownies, lemon drizzle cakes, scones, jam, cream, and tea bags.

However the Afternoon Tea Letterbox Gift has been a hit among shoppers, boasting an impressive satisfaction rating of 4.8 based on over 5,000 reviews, reports the Express.

One satisfied customer described it as the 'perfect gift', adding: "All the cakes and biscuits were fresh and tasty. I thoroughly enjoyed it. The box arrived on time-although the box was slightly squashed, nothing was damaged."

However, another shopper had some concerns about the use-by dates on the cakes, stating: "Bought for a gift, looked lovely, nicely packaged. The only drawback is the dates on the cake. When it arrived, the dates were that we only had a week to use it."

Another buyer was pleased with their purchase, commenting: "Bought as a present for my sister, she was very pleased with the contents, which arrived in good condition and had a good selection of cakes with plenty of time on the use-by dates. Very happy with this purchase."

A fourth customer shared their positive experience, saying: "I ordered the afternoon tea letterbox to be sent to my daughter on a specified date. The box arrived on the date, and I was kept informed regarding the delivery time."

They added: "It was well received, and the contents were delicious. The recipient was delighted."

• Victoria Sandwich Cake (75g) x 2

• Millionaires Shortbread Bar (50g) x 2

• Carrot Cake with Walnuts (75g) x 2

• All Butter Shortbread Fingers (84g)

• All Butter Milk Viennese Chocolate Dipped Fingers (135g)

• Luxury Gold Tea Bags (16 Bags)

• Victoria Sandwich

• All Butter Milk Viennese Chocolate Dipped Fingers

• Millionaires Shortbread

• Carrot Cake Walnuts

• All Butter Shortbread Fingers

• Sign up as a new member at TopCashback for free via this link.

• Search for M&S on the site, click through and buy the item normally. Get £15 cashback when you spend £15 or more.

• The cashback will be tracked to the TopCashback 'Earnings page' within seven days of purchase.