Payment

Why is there a $1 charge on my credit card/bank statement?
My coupon code isn't working.
Can I use a coupon code for an order I already created?
How do I use a coupon code?
Paypal charged me a transaction fee.
My credit card was blocked.
Can I use more than one payment method to pay for an order?
How do I edit or remove my payment method?
What methods of payment does Grabr accept?
What types of coupons do you have?