Dear project owner.
First of all, I'm not Indian and I'm a real developer.
To be honest, I never work with spreadshirt before. But I already take alook into their API documentation, yes this is something that I can do. I can migrate all of your spreadshirt asset from account 1 to account 2 as required.
Btw, introduce me, I'm teguh, I'm a senior full stack developer. I have over 8 years experience in web development and over 5 years experience in server administration & cloud architect. Please visit my profile https://www.freelancer.com/u/teguhpanjaitan for more info about me.
Please consider my bid and I hope you want to talk more detail over chat (PM).
Regards,
Teguh