Returning hardware kit

How can I return the hardware kit?

Go to this link
login into your account

there you can find “Refund” field
If Refund period not expired
then you can return the kit
or else
you will not return the kit

to return the kit check this link to follow the steps

I had some loose connections in my kit. My Refund is expired. Is there any chance that i can get a new device or replacement?