eBay is offering £5 off on £10 spend min.
Seems like account specific so log into your account.
Just copy code at checkout.
Further information in T&C.
How to redeem your coupon:
Simply make a purchase on eBay.co.uk
in an eligible category;
Pay with PayPal, Debit/Credit Card, or PayPal Credit; and
Enter the communicated coupon code at checkout when prompted
Click here to learn how to redeem your coupon.