Hi, please. So happy with your suggestion.
I've already have rich experience with integrating payment gateways.
I have enough skills and 9-year experiences in web developing.
I offer you to visit my profile then you'll be able to know how I worked for clients.
As having suitable skills for your project, I really hope to work with you.
Anything in my hand will be finished clearly in time so don't worry about it.
Looking forward further discussion, Dear.
Warm Regards