I had a double spend error with Monero.
I still have the seed, which I can import. But after doing so, I get a new wallet for some reason.
I'm still not sure why you keep mentioning Monero? I still have the seed, which I can import. But after doing so, I get a new wallet for some reason.
Monero is a completely different cryptocurrency that uses a completely different blockchain and network to Bitcoin... you cannot just use a Bitcoin seed in a Monero wallet and expect to see your bitcoin addresses and/or bitcoins.
Additionally, coinb.in is for Bitcoin, Dogecoin and Litecoin only... as far as I'm aware it does not support working with Monero.