ICICI Bank — error #0004 while filing 15g form

Evwry time i try to file form 15 g against any new fd, i mobile app guves error #0004. Whenever i create fd online i had to vist branch for filling 15 g. Then there is no use o[censored]sing imobile app uf for some or the other app one has to visit branch. Also reported this issue to ur customer care but they also not able to resolve it. Please resolve this i[censored] can.