I used blockchain.info to received ETH when their Ethereum wallet was in beta. The transaction was on August 22 and 30, 2017. I was able to see the ETH in my account on their website back then, and the transaction for it also. I checked again a couple of times and it was still ok. But on October 27, when I checked again the ETH was gone. My account show 0 ETH, and no transactions also.
After some researching I noticed that the Ethereum address shown on their website is different from the address when I received the coin. I think they might have made some update that reset my private key and address.
I have sent lots a requests to support but they just keep telling me how to export my private key without answering if my key or address was changed or not. I tried to ask my question again but they haven't replied back for many days. They just stopped answering like this for almost a week once, I had to create a new requests to ask them to answer.
These transactions are lost in my wallet:
I have seen an other users (like Duy Thai) having the same problem with blockchain.info. but his post was "put on hold" off topic...
Please contact me if you are facing these same problems with blockchain.info