If your card is declined, please check with your bank to see if there is a lock on your card or if there is an issue of any kind.
However, if there are no problems with your card: please try paying on other sites such as Amazon, or eBay. You can find most of our products on these sites by searching TekBotic.
If those methods do not solve your problem, please contact us (support@tekbotic.com) so that we can look into the matter personally.