Hi,
I can do it very well. Just want to confirm that we need to stick to existing payment gateway Stripe not like you shared the image for PayPal.
Rest is clear that we just need to redirect it to checkout page when we click on upgrade button.
Relevant Skills and Experience
10+ years of experience and expertise in Bootstrap, HTML 5, CSS 3, PHP, WordPress, Codeigniter, OpenCart etc and ingratiation of various payment gateways.
Proposed Milestones
$54 USD - We can discuss about it.
Thanks and regards,
Vajid Ali