I submitted my PGWP application online. However after successful submission I realised I mentioned the wrong dates of employment for one of my employers in the form imm5710e. I raised a webform and explained the issue along with mentioning correct dates. Can this be a reason for refusal as the dates I wrongly mentioned were coinciding with my studies in Canada. Please advise if I should withdraw my application or just sending the correct information through webform is sufficient.