The first link that you provided just links to the home page of their site, so either it's that they've removed the transaction already or it's because only if you're logged in as the right person can you actually see the transaction on their site.
Anyways, you're definitely not the only one here talking about delayed transactions on changelly.
Does this transaction involve ETH? Because it says on their site that ETH transactions will be delayed a little, though it does not justify them delaying this for 8 days and counting now. You should write to them on reddit, their reddit account is quite active.
you are right, it can be seen only from my account.
hash of transaction:
https://blockchain.info/tx/a680e2e1217ae5e6e8c9efa38be2769906141e3c421215c7dc636d149757df6eAmount 10 BTC
Money received 07 Dec 2017, 18:29:34
Fee 2,838.313911 XEM
Exchange rate 1 BTC = 56,645.675214 XEM
Today the letter has come:
Dear Customer
Thank you for your query and apologies for the delayed reply. Unfortunately, our support team is heavily overloaded now.
Our technical department has a lot of requests, so it may take some time to process yours. Yet we'll do our best to accelerate this process. We have asked our technical team to do their best to resolve the issue with your request sooner.
Thank you for your patience!
*No need to reply to this email in case your issue is resolved. Our support is heavily overloaded now.
Thank you.
but for almost 10 days there is no money, this is really strange. every day I send them letters - and get some disinterested answers - after such a desire to work with them disappears. although the service is really convenient
These seem like automated responses for sure, they probably have a template already for every single case, which seems disgenuine on their part for sure. I'd trust shapeshift 100x more than changelly at the moment because of their "overloaded" environment.
Also your exchange seems to not involve ETH as well, and there are no clogs in the XEM network.
Not sure why they are even havinga lot of requests in their tech department. People like you use changelly because you expect a faster transaction than if you did so yourself, they don't pay a 0.5% fee just to get this in return.