There is a code which is MBXM24T which may take it down to £10 but I am not sure whether you will get any cashback when using this.

A great value mini sewing machine; quick and easy to use, lightweight and portable, comes pre threaded and ready to use!

Double threads

Small Sewing Machine

Durable chain lock stitch

Built in bobbin winding facility

Two speed control, slow rate for delicate sewing and small sections, maximum rate for larger areas and quick application

Foot pedal for easy control

Mains or battery powered, takes 4 x AA batteries not included

Accessories included: 4 bobbins, 1 needle, 1 threader, 1 foot pedal, 1 mains power adapter

Approximate Dimensions: 17.5 x 20 cm