RCM - 5

Please be firm and confirm by reading provisions and Notifications while answering.

Here we can avail ITC on payment of GST under Reverse Charge on Transport charges @ 5%. 

The restriction is any Goods Transport Agency providing service and paying GST @ 5%, they cannot allowed ITC of their inward supply of goods in supplying such service of GTA.

And also it is clear that any amount shown in your GSTR 2B is not yours, instead of Goods or Services or Both has been received through proper document. Hence if you have been received such service from GTA, which has been shown in your GSTR 2B, then you have to pay GST under Reverse Charge and can avail ITC.