Are you talking about a Coinbin generated Time Locked Address?
If so, make sure you go to
Coinb.in and do the following:
1. Go to New -> Transaction[1].
2. Paste your redeem script and click Load.
3. Paste the address you want to send the coins to at "Address" and the amount (minus fees) at "Amount".
4. Click Submit and copy the result.
5. Go to Sign[2].
6. Paste the output from the New Transaction page and the private key from the address you choose when generating the Time-locked address.
7. Copy the signed output and broadcast[3] it.
I did this exactly proccess last week with an address I had and it worked without any issues.
[1]
https://coinb.in/#newTransaction[2]
https://coinb.in/#sign[3]
https://coinb.in/#broadcast