Hey There,
I have gone through your project requirement.
You are facing issue while payment of cart items. It is refresh twice and it is deducted twice from card.
I have good 12 plus years of IT experience and delivered many projects in domain such as E-Commerce, ERP, Mobile Application, IOT, CMS, MVC, Web Application etc...
Please take into consideration that I am not working on teamviewer.
I can solve this problem if you are given a chance to me.
Thank you for reading this proposal and look forward to hearing from you as soon as possible.