Hello here are some stores i'll refund for 15% (no up-front payments) (10% if it's your first order)
Clothing:
Ralph Lauren / £1000 / 10 items
Nike / £500 / 5 items
Calvin Klein / £1500 / 10 items
Gymshark / £2000 / 20 items
Next / £1500 / 10 items
JD Sports / £1500 / 10 items ?
Uniqlo / £1000...