I paid for my ticket and to change the date afterwards. I realised that it s better to cancel. I checked the website through manage your booking there was cancellation option, when I read their policy they said an amount of refund will decided then communicated to you via email, then it would be up to me to accept or reject that refund. Based on this I have cancelled my booking after 7/8 days I received a refund of around 20% of the total amount without an email to accept or reject it. I called customer service they said I m lying and they asked for a screenshot because I should have been advised with the amount before cancellation. I asked them to email me the cancellation email stating the amount that I signed for as per their claimings, they sent nothing coz they are a bunch of scammers and lyers. I will never ever use BA again in my life because they scam people to make money.