Service tax query - urgent please


Hello Everyone,

If a vendor charge Excess Service tax in his invoice, what remedy is available,

1. whether recipient can avail the credit what the vendor lavied in invoice? or he can not avail the input credit of the excess charged by the vendor?

2. My company take input credit of service tax what vendor charged in his bill and vendor charges everytime excess ST up to Rs 9-12.

3. This is the case of a rail frieght where 70% abetement avilable and the vendor is a government orgnisation

what are the cociquences and remedy avilable?