They must have a pop-up saying the address error. I can't remember as I forgot if I have ever done that mistake or not.
I believe stake has given you transaction details, at least a tx id? Can you share that? If they really have sent LTC to a random address, they have nothing to do nor they are liable to IMO as it's your mistake.
Nevertheless, if stake has sent LTC to a random address, you are unlikely to achieve anything here.
Here is the transaction information that I have https://live.blockcypher.com/ltc/tx/53f9049744ac92de3b7f1ec938e57da33972528950c1dc88ffb423a5b523dbdd/. The BTC address that I submitted was "3PsQaYwXaXnfZUzNPZU2nqo7YuXUEyp8wm".I believe stake has given you transaction details, at least a tx id? Can you share that? If they really have sent LTC to a random address, they have nothing to do nor they are liable to IMO as it's your mistake.
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I even attempted to send LTC on coinbase to a BTC address and it denies it saying that the address is incorrect.
That's coinbase. They have the system that doesn't necessarily mean every other site will have as well. It would be great to have such a feature but it's your responsibility as well.Nevertheless, if stake has sent LTC to a random address, you are unlikely to achieve anything here.