Limeroad — refunding of money to my bank account

I have got my refund money in the lr credits but but when i call your helpline number for changing the bank account they were asking for 5 rupees of gst if this is the condition of lime road then i want to have a serious issue on this please look into my matter query quick as i am suffering a lot so look into it as quickest possible other online shopping apps providing this opportunity to change the bank account but limeroad is not providing any of these options so please change your please change your this personality and allowance to change your bank if by mistake lee change to lime road credit thank you