modify payment gateway script to current magento website by 15$

hello sir i am able to do this work you will satisfy with my work i have 5 year experience in this field thank you

I am an magento expart . I need to check which gateway script you are using. Magento doesnt support custom script we need to develope a module. if we get available module module then your budget will work for us. If i need to develop a payment gateway module then it will be 250$ . and i will take 7 days to deliver you.

have experience in payment gateway integration. for mobile and website.