& now my new wallet company published a blog post that they will give BCH to only those user who had coins before 1 August
but i transferred my coins there in november
so do i have to contact https://blockchain.info for my BCH or i lost my BCH ?
Post your used addresses here and I'll have a look at them.
Of course, if you moved your coins after the fork then you ain't getting anything from your new wallet provider. 1st August was the date of the airdrop for bitcoin cash. If you didn't have money with them then there's no point expecting them to give them free money.
Get all your used addresses from blockchain.info, that had a balance close to or before August 1st. They should all have a sum of BCH in them. Claiming them is easy and there's a bunch of youtube vids out there specifying how to do that, but make sure you empty out every single mbtc from your blockchain.info wallet before you do it.