broker lag and refused to refund

CPI news was 8:30pm, i entered trade at 8:29pm. my data was smooth until i was waiting for news. 8:30pm hit and broker chart lag for 2mins. $200usd burst. broker say they didnt have issue, from my side, broker lag for few minutes and back to normal. my data was smooth at that time no issues. live chat didnt help and refused to refund my deposit. just excused just because they dont want to refund