H&M voucher code HMSS20 does not work

[SIDHeartdxb]

I subscribed to the voucher today, tried to use it on the H&M site, but the voucher code HMSS20 during checkout doesn't work and shows as invalid. So strange 

[Samsung_specialist]

Hi, please contact us on our toll free number 800 7267864, and our customer service team will help you fix this issue!