Getting straight to the point , i guarantee you for fixing the opencart issue right now. I have good experience in Open cart and i understand well why checkout is not working.
Relevant Skills and Experience
Regarding development - Have many years of great experience in the following tehnologies--
--> Opencart
--> wordpress
--> MYSQL , Core php
--> jquery , Bootstrap
--> javascript ,CSS , CSS3
Proposed Milestones
$11 AUD - after fixing checkout
Assure you for best services at all time.
I CAN START RIGHT NOW SIR ON YOUR OPENCART CHECKOUT ISSUE.
Kindest Regards,
Mohammad imran