Refund of ITC of Service

I am manufacturer of toys and sell good through e-commerce,

Sell goods at 5 and 12% gst rate

Purchase Raw material @ 18%

I have multiple state Gst and Amazon commission invoice ITC is accumulating in other gstin.

Can we claim refund of Amazon commission ITC or is there any way to transfer the ITC from other state to Delhi where I am paying gst
please guide because as I have to pay gst in delhi after having so much itc in other gstin