Hello,
I am a Magento expert and I will surely fix checkout issue in your website and deliver you a quality work as soon as possible.
Please, could you share your web link with me to review the current status and confirm the version of Magento?
Here I would apprise you that I have 7 years of experience in Magento (v1.9 & 2.0), PHP(v5.5 & 5.6), MySQL, HTML/HTML5, CSS/CSS3, Ajax, JQuery, Bootstrap v3, JavaScript etc. Developing Magento theme, Extension and Integration 3rd party APIs are my forte.
I am readily available & would be happy to discuss further.
Regards,
Brijesh R, Magento Expert