Refund after winning appeal in ITAT

one of the client a senior citizen had gone for appeal against commissioner order to ITAT and won the case and refund granted for the tax amount paid.
for getting the refund from department, as per the learned members advice we had given both online request through mail and offline request through TAPAL section. but after one year of winning the case the appeal effect not given by AO. no of mails have been sent and also grievance raised in IT PORTAL. but no use till now.
is there any other way to get this refund?