wrongly selected t4 type visa instead of b1/b2

[sireeshamanne]

I confused in selecting visa type...i just saw family visit and miss under stood.
i already taken appiontment to dec 14th in english for my parents.
how to change the visa type .becuase the it's in interview letter, that i can't change.can any one help me how to change..
i sent email lo info@vfs-usa...but they didn't respond.

[immihelp]

Contact VFS for this.

https://www.immihelp.com/usa-visas/u...ers-india.html

[sireeshamanne]

the vfs teem replied that i have to cancel if select the wrong visa type.and cancelation should be only once.so i lost the appiontment u know