I bought 4 winter tires, I received them several months later. When I got a mail I didn't know the card has explained the date. I think that card should no limited time as same as a gift card. Also under the covid 19 situation, I forgot to use it. I called the center on 25 May 2021, the customer service told me I lost my money due to the date explained. I am so upset and unsatisfactory about this issue. Please help me to solve it. Che Shing Kwok [protected] Thank you for your attention and help.